It's not the offers people. Pretty much all of the berry offers converted well at some point. It's the advertisers fucking you over just like they fuck over the customers being sent to them.
It's the same few advertisers, they launch shit and it converts, so everyone switches over - then they start fucking w/ conv rate.
All of you guys pushing berries and colon now would have shit if you saw what it converted like LAST YEAR.
The best advice I can give you is to learn who is on the backend of the offers you are promoting - knowing that will allow you to steer clear of the thieves.
... and the networks... I've never seen so little oversight. Most of the networks I work with seem to no longer even care if an offer converts properly. It's amazing that an offer can come out at 15% + conversion rate and then suddenly one day, overnight, it will start converting at 2%. Then your AM will come back to you with yet another shitty offer from the same advertiser. Run it for a week, it'll die, and around and around and around.
Power Flush 500 ring a bell
Ultra Flush ?
Body Flush ?
I'm assuming they are rebranding every other week to avoid getting too high of chargeback rates on their merchant accounts. Fuck it.