Let Donation rewards be BoE, so that players with difficulty or aversion of donating can still access these QoL aspects of the game.
Yes, one could argue that that could be considered RMT, and I guess that's the main argument against.
However, not only might this increase the revenue to the server and maintain it's development and quality. It also opens up indirect donations when only donation option is crypto.
I guess it would also help keep inflation down because of AH cuts.