I get a really steady stream of follows. All I've ever done is comment on articles here or there.

Why did you follow me, if you did? Some of them make sense, because they happened after specific interactions here.

It isn't that I mind; eventually I'll have content to share and drive you away with... but I don't make posts yet. Is there a bug in the "you might also be interested in..." recommendations?

Update: A comment by Peter offers a good explanation, if you have this question about your own followers.