I don't know @rossenpavlov... I don't really see the @iamgrootbot as being particularly harmful; a bit silly? Sure, yes. Does it add value? It adds a few smiles and a little lightness in an otherwise serious world.
We have more serious issues... like @pikachuu and people setting up botnets to post and vote for their own garbage comments. Now THAT... is something we need to deal with-- flag the heck out of, or rewrite the code to somehow make impossible.
The harm comes in the self-upvoting of content that is absolutely pointless. The rewards pool is finite, meaning that it is not infinite. Stealing from that steals from the community. Flagging returns ill-gotten gains to the rewards pool for more appropriate distribution.
I agree @matt-a... mostly my point here was that things like Groot and "I only say meep" are just "quirky and weird," while an army of copied "Nice Post, please upvote and follow me, here's my latest post" comments are what really needs to be buried.
Meep doesn't upvote itself, while Groot does. If Groot doesn't upvote itself, there's no problem, but since it does, it's a problem :-/.
Good point.