Hard to say. That’s the problem.

A detectable bot problem is a solvable bot problem.

Yes. But at least with the admin group I'm part of, it's dealt with fairly quickly, because we employ automated tools to help fight the spam.

You can't really tell.

It's also a very very VERY small platform compared to other social media platforms like Reddit. (I had another comment where I calculated this but it's ridiculously small)

It is unlikely that it would see anywhere near the same level of dedicated bot activity due to the low return on invested effort.

This is a problem that will become greater once the value of astroturfing and shifting opinion on Lemmy is high enough.