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This article has English version ,you can scroll down to read it .
O大有篇文章(《买赞的财富梦》)专门谈了买赞的收益，讲得非常详细，小鱼我看了觉得非常受益。这里我也谈谈对这个问题的认识，和新手们交流交流。
1、买赞服务的类型
- 竞价机器人
发送最低付款限额以上的任意数额steem和SBD到机器人账户，机器人大约每2.4个小时为一轮，用100%的votepower给这一轮的所有付款者点赞，votepower的分配按付款人付款额占总付款额的比例分配。这种买赞方式有很大的不确定性，如果所有人的付款总额小于机器人的点赞价值，那么收益为正。如果所有人的付款总额大于机器人的总点赞价值，那么就会亏本。大家如果要通过这种方式买赞的话最好先到steembottracker.com这个网站上查看一下，上面有许多买赞机器人的实时动态，比如本轮赞的价值，当前竞价总金额，当前收益率等。
不过以我的经验来看这种方式买赞的人太多了，基本上很少有盈利的时候，就算你盯着steembottracker这个网站，在一轮竞价快结束，并且仍然可以盈利时才发送资金，这时仍然会有和你一样的人做同样的事情，到最后总竞价金额还是会超过机器人点赞价值，从而造成亏损。
- 买赞交易市场
买赞交易市场模式我目前知道的主要是smartsteem.com和minnowbooster.net这两家，这种模式就是许多用户将自己的投票权限代理给了这两家网站，网站根据你发送的金额，从代理了投票权的用户里面选1个或者多个账号给你点赞，然后你买赞的钱会在点赞账户和网站之间分成。官方宣称点赞价值一般是你发送金额的200%以上。不过根据我的经验，这个官方宣称的回报率与实际回报率并不是一回事。如果你发送100SBD那么点赞后你的帖子显示收益是200美元，但是这200美元分为SBD和SP两部分，其中SBD部分为100，扣除25%审查奖励，剩75。而SP部分并不是以SBD计价的，是以steem对美元的价格计价。现在1steem值4美元，那么点赞中SP的数量就是100/4=25SP。而25SP同样扣除审查奖励，大约等于25SP*0.75*1.2SBD/steem=22.5SBD，所以总收入为75+22.5=97.5SBD。也就是勉强回本，进一步，我们可以总结出一个收益率公式：
而PSBD/steem=Pdollar/steem/Pdollar/SBD
化简后公式为：
其中PSBD/steem是以SBD计价的steem价格；
Pdollar/steem是以美元计价的steem价格；
Pdollar/SBD是以美元计价的SBD价格。
ROIofficial是官方宣称的回报率，如果官方宣称的回报率是210%，则ROIofficial=210。
可以看出实际回报率在官方回报率一定的情况下，只和SBD的市场价格成反比例，如果SBD涨得很高的话，买赞的收益会非常少。一个价格波动就没有了。在SBD价格涨到很高的时候买赞是不划算的，我觉得这两家网站还应该更市场化一点，不要官方指导的的回报率了，让回报率也随行就市。
按我的经验，实际情况没有这么悲观，上面提到的两个网站实际点赞回报率一般都在10%以上，遇到最近这样steem行情上涨的情况，收益率还有额外加成，当然下跌的时候收益也会缩水。不过由于这种买赞模式相对保本，使用者也很多，大部分时间根本买不到赞。只有加入他们的白名单，机会才会更多一些。但是白名单的审核周期似乎很长，我上个月申请了smartsteem的白名单，目前还是排队中的状态。
- 小额卖赞账号
steembottracker.com这个网站下面还有很多卖赞的账号，只要往这些账号发送一定数量的SBD就会收到相应比率的点赞。一般数额都在1SBD左右，额度很小。收益分析可以参考上面的公式。就不具体讲了。
2.我对买赞的看法
我觉得买赞可以看作一个投资，每7天10%以上的收益已经非常不错了，相对于买steem直接powerup还是要划算得多。当然你发的帖还是要用点心创作，万一被踩了就血本无归了。另外新人可以用买赞的方式起步，新人小鱼写的东西很难被关注到，费力写的帖子，一毛两毛的收益也挺打击积极性的，很多人就放弃坚持写下去了。如果投点钱买个赞，投的钱基本可以回本，每个帖子还都有点收益了，对保持积极性还是有很大作用。最后，买赞的人多了，steem的价格不就上去了？所以我的结论是买赞是个多赢的事。不过还是要强调下，买赞是用来激励小鱼新人创作热情的，不能舍本逐末，为了赚买赞的收益滥发水文，steem是区块链，留下的痕迹是消磨不掉的，可不像银行的信用记录只保存5年。名声坏了，花多少钱都买不回来了。
Dear steemians ,I'd like to share some opinions on buying upvote .Is
it a good thing ?Is it profitable ?I also want to know your opinions ,I'd like to read it in the comment below .
1.Types of vote selling service
- Bid-Based Voting Bots
Bid-based voting bots work on a bidding system. You can send any amount of SBD above the minimum (minimums vary for each bot) and once the bot account reaches 100% voting power it splits a 100% upvote between all of the bids based on each bid's % of the total amount bid during that period.
If you want buying upvote from this service ,you'd better go this site :steembottracker.com,you can see realtime status of many Bid-Based Voting Bots,and figure out wether it still profitable to send in money .
From my experience ,there are too many bidders .Getting an positive revenue is not a easy task .Despite keep tracking on steembottracker.com,and send in money at the end of current round when it still shows profitable ,you still can lose money for there are others doing the same thing as you do .
- Vote Selling Market
From my acknowledge ,there are two sites adopted this type of service,they are smartsteem.com and minnowbooster.net .There are users authorized voting ability to them,when you send in money ,The site will use authorized account to upvote your post .and your money will divided by the site and the upvoter. In official claim ,the return rate is more than 200%.
From my experience ,the real revenue isn't that fantastic .If you send in 100SBD,the post do will show $200 profit .But it is splitted in two half ,the SBD part is approximate 100SBD,after curation ,it's 75SBD.the SP part isn't SBD value ,it's US dollar value ,for now 1 steem=4US dollar ,so you'll get 100/4=25SP,according to SBD/STEEM price and after curation it's about 25SP*0.75*1.2SBD/steem=22.5SBD. So the real revenue is 75+22.5=97.5SBD.nearly just break even .In further ,we can deduct a formula of return rate :
Since PSBD/steem=Pdollar/steem/Pdollar/SBD
we can simplify the formula :
PSBD/steemstand for steem price in SBD；
Pdollar/steemstand for steem price in dollar ；
Pdollar/SBDstand for SBD price in dollar .
ROIofficialstand for official claimed return rate ，if official claimed return rate is 210%,then ROIofficial=210.
according to the formula ,the return rate is only inversely proportional to market price of SBD. If the SBD price is very high ,the revenue will be very small .If you mind of profit ,you should think twice when SBD price is very high .I suggest that maybe these sites could let market decide the return rate instead fixing return rate .
But don't be pessimistic ,the real world revenue rate of these two sites is approximate more than 10%.Not fantastic ,but still attractive .Since the investment is nearly guaranteed ,there are also too many buyers,you won't get too much chance unless you are whitelisted by the site .I applied whitelist of smartsteem.com last month ,but now I'm still pending in the queue to be reviewed.
- Small Vote Selling Account
At the bottom of steembottracker.com,there are many upvote selling account .sending a small amount of SBD to them ,you'll get approximate 200% upvote .They only accepted small amount around 1 SBD. They're not very useful for promotion purpose .
2. My opinions on buying upvote .
I think buying vote is good investment ,10% return rate every 7 days is fairly good. It's a better choice compare to just powerup steem. Still you should compose your post with effort .If your post have been downvote by some whales .It will be a totally lost of money .It's also a good way to start for minnows ,minnows write articles with effort but they are remain unnoticed .The revenue is too small to make them stay in steemit .Invest some money on your own post ,make it more visible and make a few profit ,will keep minnow stay and grow up. At last ,if there are many people buying vote ,the price of steem will ascend too.I think this is win win situation .But still ,the most important ,do not spam .Steem is blockchain.what you done will be recorded forever .You can buy upvote for your spam post ,but you can't buy reputation whatever price you offer .