I voted I approve, it makes it more enjoyable.
Reasons are as follows, first off, I don't smoke weed when I'm on my own, so it's very rare these days that I do, However....4-5 of my friends from London, come home from work, roll a spliff, and log onto WoW and raid etc and we'd just chill out on vent, and I can tell you that none of them are the type of the people to give abuse in LFR or abuse in general, or trade spam or anything else.
So for me, and all my experiences connected, It's fine.
I take legal painkillers for migraines that are more powerful than stuff like weed and play WoW lol, now if you're going to sit and play WoW on an acid trip....
An arsehole is an arsehole.