This is the worst idea I've ever heard. If I were a VC and I found out one of the founders in my portfolio had become involved with FounderPool I would immediately drop them and cut my losses. Being a founder takes a huge amount of confidence: You have to believe, against all odds, that you will be successful. If you really do believe you'll be successful then it wouldn't make sense to trade your soon-to-be valuable…
And on top of all this, what happens to the voting of this pool, share holder agreements, etc? I can only fathom the shenanigans that can occur. An acquiring firm can press hard on this 1% if they're playing ball.