Steem stats: number of active users, and number of posts per day

I came across some interesting graphs over at "SteemTool":
https://tool.steem.world/Post/Stat

From the looks of it, both the number of active users and content produced have been steadily declining since the beginning of the year:

What is your take on this graph? Do these numbers seem correct? Is the number of current active Steem users below 10K?

It looks like HF20 had a strong impact on the average number of daily posts per author. It was hiking up to 2, but now seems to be sinking to 1.5:

It's also interesting that the total number of posts per day looks quite similar to the STEEM exchange rate:

(Source: CoinMarketCap)

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