>>317572613
t. false flagger or unaware of the situation
Anyone including them are welcome in the regular meetups as long as they don't make instance unusable via repeated use of crashing/nuisance

Usually it's a case by case basis. Person by person on how each individual reacts and block someone else. No one is explicitly banning them

Also this >>317572832
Be wary of "self-proclaimed out cast" groups that would warn you or more to the point tell you not to hang out with another group.
Feel free to hang out with the self-proclaimed "outcast group" but you have to form your own opinion of them and never limit yourself to only them. Always take as much info as you can and keep your options open