It's implicit. I've been a lurker for some time; check any of the social megathreads and you'll certainly see people constantly going on about clubs, gatherings, restaurants, organizing this and that in person. These people are not masking. The ones that are will be talking about it, because it is impossible to be masking in the current year and also be social without noticing the dissonance. Any pushback to this point will be met with apathy at best, hostility at worst. It seems to be treated like veganism, where there is an unspoken policy that everyone acknowledges it is the correct stance to take...but if someone is not following it through for whatever reason, they just aren't going to mention it at all, and doing so is breaking decorum. In this case "don't ask don't tell" doesn't work when you still mingle about going to bars or concerts or whatever else like nothing is going on. This itself is a form of (normalized) violence, which is where "this site is pro-eugenics" comes from, a sentiment I am in agreement with because the base of modern society is pro-eugenics.