I join the TF2 server and these four ask me to leave. When I asked why, they said they were having a private match. I got their IDs then left to avoid conflict and because I felt unwelcome (and was unwelcome at that). Not sure if this is actually bannable, but I thought I'd bring it to your attention.
"HelenKeller69" STEAM_0:1:52302270
"Blatant_ttfn" STEAM_0:1:58128846
"Sebi

" STEAM_0:1:57797580
"Purple Kitties" STEAM_0:1:42318943
"Doing good is a pleasure, a joy beyond measure, a blessing of duty and love." - Will L. Thompson,
Have I Done any Good?

I'm Port_A_Build, the Portaller.
Come join the Kingdom at 24.21.3.62:27015. Complete with one of the most complicated gamemodes ever and a family friendly rule.