I have success with Findwhat. The way I was able to do it for my clients was I would ask them to make blocks for all my accounts on the crap. Ask them to block your listings from that partner. You need to study you logs and see where your referrals are coming from. If you notice a large increase look for the spike and ask them to remove it because you are not getting the conversions you need.
The bottom line is if you want to be successful with this tier of engines like Fw, kan, enhance you need to work with them. Its a big mistake a lot of people make. There is quality in their networks. We are doing really well with Kanoodle's CT program and ok with enhance's kw stuff. It all takes tweaking, Over, Goog, Kan all of them to get them to return the most for you.
I agree... findwhat continues to slip and I find myslef today, defending ourselves and proving that they have sent us LOADS of illegitimate traffic from questionable IP's etc. I'm ready to throw in the towel with them. Kanoodle and Findwhat have fallen so hard in the last 8 months, it's just sad.