That's the issue with 2fort type of meme maps they don't always necessarily have the 2: "casual" feel to them. It's either that or 3: "fun"
There isn't really an issue with friendlies on our other maps such as payload or casual servers, harvest and dustbowl. I'd say even Turbine is less friendly than 2fort purely because it has an objective and rounds
2fort has a certain kind of reputation and is also the most popular map in the game by far so friendlies naturally gravitate towards it, we could either continue with mass banning them for griefing which will spawn complaints and hate on reddit and other platforms or we could simply let them be like every other server
I suggest you make the 32slot tf2 server a type 2 and actively discourage 'friendly' type players.
They are already discouraged by taunt limits and AFK timer if they idle too long, bypassing AFK is bannable
Skial 32 player 2fort servers are still mostly anti friendly in my experience and they dont stay alive for long. Dealing friendlies conventionally is still far better option in my opinion than us starting handing out bans for someone roleplaying homer simpson and standing still for a while as heavy and taunting
I am extremely anti friendly myself and still think banning them will just harm the servers overall, so just kill them and force them to fight back it has usually worked for me. If they try to kick you report them and they will get muted
Also griefing friendlies (blocking own team, helping enemy team by giving them sandviches or healing spies etc.) are still bannable