I hate it when people brag about having tons of crappy add ons, it just makes the load more of a pain in the ass, I hate it when people host and have tons of unneeded add ons enabled (like stingray in an office RP), I hate when someone improperly makes an add on and when you try to join the server it gives you some download issue so you have to go in forums and download the add on yourself even though you don't want it. I don't like servers that say no swearing or even more when they don't say anything and then you swear and out of no where they ban you, there's a damn curse filter installed default with the game for a reason. I don't like people who still builds or add ons and claim it's theirs. On forums I don't like people who will put really small font for unnecessary things or really long sentences or just about anything. I don't like people that will say they're older to act cool or they will try to act cool by swearing or put stars instead of swears, I have my swear filter off so I know when they really swear. I don't like building servers that will shut down at random or trench servers that randomly restart the build so your perfect trench is gone. I don't like idiot team mates that ruin your builds or tunnels in trench servers or when butthurt enemys rage about how you don't shoot builders.