IMO, Poloniex has done nothing wrong. They have enough trouble keeping up with everything that it takes to run an exchange. You have no right to call it the poloniex scam, as they didn't ask users to send those funds. They offered a service, and they are the best exchange for trading XMR. You have a lot of anger in your words, and on top of your red trust rating, I'm not inclined to believe you are doing this for the benefit of anyone.
Should polo tell people they need to use a payment ID? yes. However, I just looked at my polo balance screen and saw this:
Deposit: You MUST send your deposit using the unique Payment ID below. Failure to do so may result in the loss of your deposit.
It would seem that they are doing what they can do warn users that they must use a payment ID. If the users are not worried enough to contact polo about their funds, why must polo spend hundreds of hours (paid to the employees, no less) tracking down people who didn't follow instructions and don't care enough to go after the funds?
Furthermore, fluffy is right. There is no reason the funds should go back to the developers. The funds should be returned to the people who sent them if there is a way to link them back. If not, polo should be able to keep them. I would like to thank polo for giving us a good platform to trade XMR upon, including using XMR as a base pair. Their platform is better in responsiveness than cryptsy, and the features are better than bittrex. If it weren't for them, it is possible that XMR wouldn't have as much exposure as it does now.
