I support the reasoning behind UASF, but it could be a dangerous experiment if the community is still divided. An UASF proposal should seek at least the support of the undecided miners (e.g. F2Pool).

With the current power distribution - 30-40% of the miners absolutely against Segwit, 20-30% undecided and a pretty strong Segwit-opposing /r/BTC community- it could lead to a situation where the miners of the BU-Fraction simply would decide to hardfork and we have the BTC/BTU scenario we normally would like to avoid.