85 percent is the hardcap for dr. You also have a soft cap. Each seperate type of DR has its own cap. And they stack multiplicative not additive so you never hit 100 percent. Say you have 80 percent flat dr and 80 dr from armor your actual dr would be 95 percent. So since our flat dr already capped getting more flat dr is no help. And 1 percent in something like dr to burning is NOTHING. say we have that say 80 percent flat dr that 1 percent is just 1 percent of that remaining 20 percent not 1 percent total dr.
But in the end what does any of it matter? When there is no game to play anyway. The game is horrible the only reason we still sticking around is in hopes it gets better. Buff sorc nerf it give everyone infinite damage who cares still a mediocre game with 0 reward for an abysmal boring endgame.