You know those giveaways that ask for donations? What if you could donate directly onto the thread so that only the creator and those the creator has given permission to can take tu out. That way, you don't have to hassle around with getting your tu mixed up with tu for donations and contests and such. This would probably take some serious coding, but it would be worth it.
It almost sounds like Deviantart with the donation pool thingies you can set up. This wouldn't really be used by everybody, and I can see how it would be abused by beggers to get tu. I also see tons of problems coming up. Also like you said, it would take a heck of a time to code.
No support. Asking for donations is one of those things that can be so close to begging and I feel like an addition such as this would just encourage beggars to post.
**•̩̩͙✩•̩̩͙*˚♫ and the haters gonna hate hate hate hate hate ♫**•̩̩͙✩•̩̩͙*˚