Nobody is being forced to accept the money, and therefore nobody is being forced to interact with bitcoin. The money is there if they want to claim it. If not, no problem, they can just ignore it in which case it doesn't affect them.
Meanwhile you insult us by simply saying "fork it." That doesn't get money donated on my behalf out of your Bitcoin wallet. I suggest y'all stop bickering and actually start helping. The burden to clean up your oversights is on no one but yourself.
We know you built the project in good faith, but it needs serious tweaks. At this point you're being a nuisance, at best, to the very creators of projects your site is deployed upon! If they were in your situation they would have fixed this, shipped it, and have written a detailed postmortem by now.