How 'bout we get no points now, but 20 points if you use one of our ideas as a future poll.

And, behold, half of your request has come true. You can still get XP for a poll idea, but if one is turned to a poll, the pollsters change the ownership of the poll node to you, so monks can vote on it and you can get XP for it like for normal writeups. This is no fresh change now, it's happened a few years ago.