Sorry, I don't have this impression, and I'm not talking about the handful of members that post dozens of pro-BU posts/day  (these, probably are paid in some way for it). In the German and Spanish sub-forums some very high-profile members support BU, among them a former Bitcointalk moderator with an important Bitcoin blog. I think it's currently a 60/40 to 70/30 division with the majority being pro-Segwit. In my opinion, in the case of a hard fork, that's not enough to "kill a BTU chain instantly" what would be necessary to preserve Bitcoin's network effect.