There are a few people who I avoid when raiding, purely because these people put maximum effort in to their characters and really max everything out. When raiding with them, I just feel like that dumb twat holding everyone back (which let's be honest, I am 99% of the time anyway) which I feel ruins it for them which in turns ruins it for me. There are exceptions of course, usually after a few beers I just stop caring which only makes matters worse.
I did the whole hardcore raiding thing with WoW, learning the fights on launch day and all that, and I loved it. Being the top of the healing charts every single raid despite being one of the lower-tier healers was immensely satisfying but it was pretty much a full time job. The amount of resources I had to have in order to achieve this was astonishing. I get it, I respect it, I used to love it, but as I get older I just want to log on, mess around and have a laugh and then log off again.