Lol, you obviously don't know how this works girly.
Its called "Hey, make me a donation and I will donate to you this house."
If they want to "argue" about it; I will just say it was a gift and they can't do anything about it. Unless giving gifts to other players is now a punishable offense, if so /reported.
If they start banning people for giving other people things; then they are going to get a lot of negative feedback; and they are not that stupid.
I can also just "list" an item that is worthless for a ton of money listing the digits and have them buy it from me; then just /donate/ them the house after.
Unless buying things from the auction house is also a bannable offense, if so; I think you will be banned too.
There are tons of ways to do this; just use your head. It should of never been made an offense in the first place.