And I have no clue as to ur exact mode for how you plan to monetize, and the ramification that'll arise off that. But I def believe you when you say you thought of some nifty ways.
Re: poker pros who use Twitter; a lot of their prop bets aren't necessarily financial, and just incredibly humorous and extreme otherwise, though i understand why you'd want to totally steer clear of any potential headaches right now. Idk, though, I'd still bet you could do something there and be as kosher as a Hebrew National.
Really awesome, regardless; ill def follow what happens and give it a go as a user.
Next version sounds perfectly planned. Be sweet to get some "highly" followed people using it till, then unleash v2.0 on their followers/observers. Perhaps Bill Simmons as your inaugural celeb user?