I actually like people asking for 31+ , they are basically saying either they are impatient or incompetent which in both cases you'll just save time and headache if you avoid them , on the other hand groups asking for 30+ are either veterans or casual players and for me those are the greatest and most fun groups to play with. they won't mind you dying and will help you if you have any questions regarding any aspects of the raid. and you know the funny part is that these guys usually finish the raid faster. a great man once told me " git good or git rekt scrub"