While I did my college program, I head all sorts of rumors about Tink. I heard it was a man, and I heard the same person did it every night for years. I did hear that it was a contracted posistion, and the highest paid person (besides executives) in the park. I heard she makes more like 800 not 10K. I heard she made so much because she was required to have insurance, and disney didn't provide it.
My friend worked at the Bakery told me she saw Tink, and it was a little man.
I also know that the people who play Tink for meet and greets, are female, and very tiny. Something like under 5'0 tall, and under 95 pounds.