I’ve been to BPW 5 or 6 times already this year, and I’m going again on Sunday – that’ll be 3 weeks in a row!
The only issue I’ve ever had there is fellow riders not being terribly careful when loading and unloading bikes from the uplift! Luckily invisiframe has saved my paint from pedal scrapes and the like but it’s been frequent enough that I’ve bought a cheaper used bike to take on uplift days. And before anyone says it’s a mountain bike it’s bound to get scrapes, I don’t mind if I damage my bike riding it (annoying but expected) but if someone else does it because of carelessness that’s uncalled for.