I do love the LFR, lets me experience raid content and ive missed out on raids previous expansions.
At times yes it can get messy in there alot of blame goes around.

Just yesterday i took my shammies in there (named differently) after 1st boss someone picked up on that it was a multiboxer and couple people were having a go that they hate boxers and wanted me kicked, two others said my dps wasnt good enough,,,i was 12,15,16 on the dps so they had every right to want my last 2 toons kicked. but i was actually suprised that i had alot of people in there defend me and boxing. They didnt kick me and luckily every boss following i came 6-9 on dps.

Now that my pc is upgraded i can run them all on 1 pc with very little lag in there now, so my dps is a lot better.
Having different names helps alot,,most times no one says a thing, since almost every boss everyone is grouped up all together