I see one big danger: Number of whores will increase again. Or there will be a new type of whores, like noble whores (don't know if noble whores is correct term, talking about very expensive ones).
Ummm Hentai, more premiums are good. More money to the AChat team means more resources available to develop AChat. Money might not make the world go round, but it certainly greases the gears.
I see the example of virtual world i am living in: it is quite famous but i will avoid to write here the name. This world has a good economy, lot of money. They have a very huge marketplace with user made contents. Lot of money in that game, real money. This can seem a bad thing but instead this made that platform one of the most advanced. I used it with my high level video card and the realism is impressive. It is not adult oriented of course but what they made there can be made in achat. Giving to all of us a better experience inside the software we love.