I really don't know if human or bot, but all over the place they are. I have dropped some of my wife's post in the post promotion room on steemit chat and one of those two will generally drop by and vote on the post, also have done it to other random post and they get votes also, so may be bots, but they never say why they voted.
You are viewing a single comment's thread from:
I don't use the post promotion places and I've seen them too... Its interesting for sure! If you ever find out, please let me know!