Here's a suggestion. I think each avatar or moniker should show if that person is a financial supporter of this site or not. I also think it should indicate what level each person supports at.
For example, monthly donor, quarterly supporter, life member, etc.
I understand that not everyone can chip-in all the time, but come on. I think there are too many cheapskates here.
This is FREEREPUBLIC not FREELOADER.
I think that's an excellent idea. Quiet and subtle but illustrative.