It’s not always a scheme if there is one tipper who consistently attends shows and clears goals by himself. I think there are several members here on ACF, myself included, that have done that kind of thing consistently for models we visit a lot.
Sometimes we just find a model we like, and become a “regular.” When that happens, yes, we might spend a disproportionate amount of our “token budgets” in one or two rooms. It’s not a scheme, in those cases.
I don’t doubt that what you described happens, too. I’m just saying it’s pretty common for the single-tipper, goal clearing regular to just be a loyal customer and nothing more.