The trouble with donations is we'd need to figure out who got (how much of) the money, and that sounds like an instant recipe for hurt feelings...

Anti-aliasing would require a very different codebase. That's not to say it's difficult or impossible, because I'm sure there are all sorts of GPU things we could be doing to speed up the code that weren't as available or realistic in 1998, but those aren't topics I'm well-versed in.