1. Swearing
2.music down the headset
3.players adding you with a full 6 man raid team already
4.people not listening when you ask for a cleanse with the relic
5.sword vanishing on crota
6. Heavy ammo glitch
7. The word the xurned
8.players bitching about a weapon/amour piece xur is selling every Friday
9.players stating their in game hours and think that means a ghorn should of dropped by now but are stupid because its RNG not hours played
10. The "git gud" or "scrub" "rekt bru" basically people with low intelligence
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10 would be a starting point. Not keen on swearing either. Know the odd one slips out but with some people it's pretty constant and that gets tiresome very quickly.