Ah, that's understandable.
I will say I frequently give away to open groups like Playing Appreciated and Unlucky 7.
They allow me to give away to a large group of people, without having to worry about abusers. And the games go to people who actually play their wins (Playing Appreciated), or who are new and have not been able to win much yet (Unlucky 7). :)

Regardless, I respect your decision. Have a good one!