I was reading some the guilds and DejavVu seems much more hard core than casual, 50% raid attendance is pretty high. Definitely not casual.
I think ignoring open-world and not pushing hard on new expansions is now considered casual raiding regardless of attendance and loot rules.
Isn't that subjective to the amount of raiding done? If they only raid once a week 50% is two days a month.
Listed as 2 DKP raids plus one (non DKP/RA) open per week, so 50% RA is 1 per week. Should be easy to keep that % on average