Ive gotten to 2000 before, but they seem to either quit before they get the XP, or something, cause when i re-initiate, the XP hasn't gone up
Edit: Nevermind, i got it to work. That being said, i feel like you should start getting XP at increments of 500XP. Considering you can only do it once per session, i think it makes since to earn multiple instances of XP. It also makes it easier to progress when you're still working on getting to the cap. But i could be wrong.