And what other solutions were there? People had problems finding groups for dungeons. Spamming in city for hours is not fun. Before LFD, that is what I had to do. Not every guilds had dungeon runs. Especially when they are already raiding. Restricting the LFD to just the realm has problem for the low population realm.
Yes, there are rude people in LFR. But there were always rude people in the game. LFR did not create them. It just gave people an additional to meet them.
Given the choice, I rather be able to run 15 dungeons a week and have one or two bad run rather than one or two runs per week.
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I wish it were. It happens in the UK. Maybe not as much. I do not know how often this happens but there are now "specialist" law firms that "helps" people seek "compensations" from "injuries". Even if it happened several years ago.