The Fans of Gen Con Facebook page currently has a poll on this subject. The question was:
If an event had in its info "We ask that you please mask while attending this event for the safety of our immunocompromised staff/performer(s)"
What would you do?
600 people responded. Current totals are:
Yes, I would make sure to be masked - 474 (79%)
Yes, but it would help if the event provided masks because I won’t have one - 45 (7.5%)
No, I would not attend if asked - 70 (11.67%)
No, I would attend but probably not mask - 11 (1.8%)
600 is a really good sample size for this convention. I think the concerns of mass chaos, players being ostracized, and GMs suddenly cancelling events is overblown.