The real question is how willing are people going to be to rewatch the same canned animations over and over and over again to unlock more canned animations to repeat the process.
Let's imagine the average player - he logs in to rub one off, sets up a scene, jizzes in 10 or so minutes and then logs off. That's how much he's going to be interacting with the game on a daily basis. Granted, some users may be hornier and log in for two or three 10-minute sessions in a day, but that's still an average playtime of 15 minutes or so.
Based on that limited timeframe, how long is it going to take the average player to unlock new scenes or characters? And since the game is relaying almost solely on player-created sessions to drive the economy the servers would need to be full 24/7 to allow people to earn some likes in those 10-minute fap sessions.
Basically, people are only going to log into the game to masturbate, and you're already competing with all the other porn out there for that, so what kind of average usercount can we even expect in the game?