In OSP/CPM you're able to spam smileys and random crap when something funny or unexpected occured in-game. Like a triple air rocket followed by an endless amount of smileys. That ability gives the game a certain touch and more room for expression. I miss this in Quake Live and would rank it as a very important hotfix that we need straight away without delays!

I know that there was always some asshole abusing it but you could always cl_noprint/cg_chatbeep 0 it.