People can do as they like on their own systems and resources, but when
participating in the GNOME community, they should do so with respect.
Refusing to exclude anyone is itself an exclusionary policy; it selects
for the kind of people who will put up with absolutely anything, and
excludes people who do not feel comfortable in such an environment.
That creates a kind of community that I would not want to see GNOME
become; there are too many of those already, because there are too many
projects unwilling to kick out awful people.