I own a forum which currently has 23k online users, all of them bots. The last new post in that forum is from _2019_. Its topic is also very niche. Why are so many bots there? This site should have basically been scraped a million times by now, yet those bots seem to fetch the stuff live, on the fly? I don’t get it.
If the forum considers unique cookies to be a user and creates a new cookie for any new cookie-less request, and if it considers a user to be online for 1 hour after their last request, then actually this may be one scraper making ~6 requests per second. That may be a pain in its own way, but it's far from 23k online bots.