It seems to take way way longer to kill bosses now, i've been in 3 groups today and people kept leaving because they just got bored....or got tired because there's so much hp on the bosses. Before it was more of a tactics issue, now it seems like both a tactics and a dps issue.
You could spend 20+ minutes trying to get a boss and in the end it drops green junk. People don't seem to be bothered to do that anymore. Or maybe 1.6 has only just come out and people are getting used to their builds, so they don't want to jump into dungeons straight away.....
Too bad there's no free respec for people to test new builds.