This is low priority, but the ease of creating offensive account names is a concern for me in the long run. It is common to see these in knockout mode where most guest accounts play and there’s nothing the moderators can do that will have any impact when someone is offended because their name is mentioned all over the screen.
I suggest that, first of all, guest accounts can only select a username from an approved list of “cool names” or just use a default guest name. If the players want an actual account name then they can register with a verified email address. If players want to use the site then they should lose something if they abuse it. Otherwise, having rules and such becomes a bit pointless in my opinion.