Not that many, just obvious bots/scams. The app I use has user tagging so I can assign a color tag and text tag per user. Red = for me, do not engage and yellow = for me, engage with caution.

I tend not to block real humans, even the trolls, because often times the responses are interesting to me. I've learned some real facts about my trans peeps here on Lemmy because some people took the time to give informative responses to the community's benefit, despite the question being an obvious troll attempt.

Some of my tags include yellow for "AI slop spreader" and red for "TERFy troll".