Havn't seen such a thread lately but here it goes:
Since the release of Flex Raiding, how often are you doing LFR?
Talking about end-game content only.
Update:
So far about 50% of the playerbase never do LFR, and the tendensy for this cause that LFR has a poor design.(Gently said).
And about 4% of the entire playerbase does it weekly.