It seems that when a user asks a bad question, that they have likely asked a number of other poor questions in the past as well. (I only have anecdote to back this up, no hard evidence)
After voting to close a question that I consider to be particularly poor, is it a bad idea to look through some of the offending user's other questions for other poor questions that may be deserving of a close-vote or a down-vote and possibly popping into a chat room to ask others to look at questions I think should be closed?
I could see the abuse filters picking up this sort of behavior, since it is targeted at a single user, but at the same time it seems to me that cleanup should happen when cleanup is needed.
Is doing this considered abusive behavior? Is there a better way address this?