I just had a one day CTR that skyrocketed from 3000 impressions to over 190,000. Needless to say this depleted my account in that one day. I can only suspect that I was victimized as the one keyword that caused this huge increase in traffic was the one keyword that cost the most ($.50per).
I sent an email to Yahoo, but have yet to hear a reply as to what they intend to do.
Any thoughts here?