> They used their own sound effects so if someone was stacking kills or whatever it would play announcer or musical clips.

Whew, to me this was a strike against community servers. There was a period there where I couldn't join a single CS:Source game without a boatload of Simpsons sounds downloading preventing me from playing. I remember replacing the downloaded sounds with 0 byte files so I wouldn't need to hear them, but servers kept changing the paths so I'd have a bunch of redundant ones to clean up.

Thankfully in true Valve fashion they gave me an out, well after things had gone completely off the rails, with a command line (and later UI) option to block only sound downloads.