I totally understand your first reaction "this is tool for marketers willing to use automation tools to bother people" but actually it's not like that.
The tool internally fosters a collaborative and helpful behavior, and clearly asks to avoid spammy content.
The users of Hivoe are willing to kickstart conversations! And that's the way I've been using it since the beginning.
If you behave differently, like in a spammy markerting only oriented way, the users will probably be likely to mark you as a spammer on Twitter. End of the account.
I hope you got my point. Nice to share our opinions!