Since UASF doesn't look like it'll go very far, I also doubt they'll bother with that.
Oh, UASF will go very far believe me!
Oh yeah? They got 80% hash power?
It doesn't matter how much hash power do they have. What does matter is that nobody in their right mind wants their bitcoins turned into chinacoins!
So how many exchanges are on board with UASF? How many wallets?
UASF has neither mining majority nor economic majority. I wish it was different, but that's the reality.
Irrelevant. The only thing that matters is how many holders are for it. The notice of the big Segwit2x agreement should've stated how many BTC they all have. That would mean something. Wallets and exchanges means exactly bupkis because wallets and exchanges will service the owners of BTC not the other way around.