Just paid my yearly subscription to 
@sophie. She does excellent work on Pika Backup, the app that makes it simple to backup all important files to an external drive, freeing us from cloud providers.
But Sophie also tackles systemic problems and works on enabling others. She's a technical expert but she also works on making 
@gnome a great platform to develop for.
I pay $60/year for all her great work. Who will top that?