The problem is that people disagree about the term bot.
It should mean an account whose content is controlled exclusively by an algorithm.
But instead it has come to mean anything they consider low-quality which often includes a lot of real people who are either paid to do so by state actors, have been radicalised or are just looking to troll. And it's very hard if not impossible to detect and ban those people.
Not to mention most studies on Twitter bots define one as "fifty interactions per day". If you define "heavy Twitter users" and "bots" to be the same thing, of course Twitter is going to be full of 'bots'.
I have a prior, validated by experience, that anyone spending that much time of their day on Twitter likely has nothing of value to contribute.
It would imply they work in PR, marketing, propaganda, or failing all of those, have little life outside the internet. Either way their content is likely to be of extremely low quality.
The problem is that people disagree about the term bot.
It should mean an account whose content is controlled exclusively by an algorithm.
But instead it has come to mean anything they consider low-quality which often includes a lot of real people who are either paid to do so by state actors, have been radicalised or are just looking to troll. And it's very hard if not impossible to detect and ban those people.