Does not compute.
Seeing a marker on other people’s avatars is going to prevent you from donating? Is your avatar so beautiful that maintaining its integrity trumps supporting Tom if you previously planned to do so?
The whole Patreon supporter flair is still being tweaked anyway. I like the idea proposed in another thread of using a Qt3 specific rather than Patreon related flair element.
Edit: see here:
So while you can use tricks to block the elements that show the current flair, it might be worth waiting a while longer until things stabilise.