Heh....y'know, it occurs to me - we're likely -not- to see some of the nastier irritants on mastodon compared to birdsite - there's no real impetus to add in click fraud for ad impressions, so that motivation for bot traffic is pretty much nonexistent.
And if follower count remains somewhat opaque between instances, ego-boosting via fake followers is not likely to happen either.
There's some rather interesting implications amongst all this, aren't there?