You're right; they are useless because everyone attacks the OP instead of discussing the issue.
Petitions won't do anything because it comes down to Badspot's decision in the end.
Badspot honestly could care less about a petition because he hardly ever reacts to them.
Petitions being constantly posted are a form of spamming.
They virtually are nothing except a rant and a vote for changing something.
If Badspot reacted to them, it would be different, they would actually be helpful.