reallynicestamps is correct.
You aren't obligated to read any of them if you don't want to.
If the problem bidder-specific harassing messages are merely annoying and of the nuisance variety like: 'You got any more of those? I'm looking for 28 of those but only if 27 come free' and 'How come you're asking six bucks for that? I'll give you three cents' and 'That water is too wet; you got any that's drier?'' then feel free to roll your eyes and move on.
If the messages are more like, 'I know where you live and I'm coming to get you' then it's in your best interests to report them to the powers-that-be.
Although..... I've always been tempted to check that little box at the bottom of the reply and post the really dumb questions on the listing itself.... but with the buyer's ID noted. That would get me in trouble, however.
If you set up a formal Q & A under Manage Communications with Buyers, you might get fewer random and/or dumb questions. I finally did but I can't see that it's made much if any difference. I like answering questions too. So, there's that as well.
