[raydev]

> That means that 20% of the posts that I see, as a lurker, are generated by bots

I don't see how you can arrive at this conclusion. It depends on who you are following, with some additions by the algorithm (unless you use the chronological feed) and (speculating here) the algo pushes content from real humans.

[daenz]

I read tweet replies, not just tweets (apologies if I'm not using the correct terms, I'm not an active Twitter user). The original tweet may be a real user, but I often dive deep into all of the comments. If 20% of those comments are from bots, then that's a lot.