That is why I didnt mention strictly being pay to play, most people buy credits every age to set sitting. If you pay $5 to play, and also get $5 worth of sitting credits, it ensures a steady cash injection to the game, while also giving sitting credits to people anyway, encouraging them to use the extra features the game uses.
Most people's arguments that I'm reading are about ways to improve the game, and things they want done for improvements. Improvements take time and money to accomplish. The vast majority of people left in this game are not people that would shy away at giving a lot of their time and some of their money to this game.
People donate to munk because he keeps implementing useful things into his tools.. People don't shy away from giving him money to enhance their experience.
It really depends what demographic they want to aim for.. most of us started playing in junior high and high school, so at the time free to play made sense. But now, most of the main player base has jobs and disposable income. I'm sure they would be OK giving some of that away if they knew it would really help enhance their experience, like the production of a good usable app etc.
I don't know what FS has done to you in the past, but i don't appreciate the attitude. We are adults here.