The flood of anti-Bernie anti-Progressive rants
on DU has receded .... at least for today.
When they come up, I suggest objecting once, reasonably, pointing out the importance of attracting idealistic young voters for the 2018 and 2020 elections and then exiting the discussion.
You'll get five or six snarky, derisive replies from familiar names, but by and large I think the majority of DU is tired of refighting the primary and isolating one of the most popular politicians of our time.
= new reply since forum marked as read
So many supporters who posted here for years have just left. And alerting on the blatant attacks doesn't seem to do much good - they're a clear violation of the SoP as it's written, but juries don't necessarily see it that way. 
... of a DU that is hostile to progressives, and leave.
It's too tiring to hang in there and argue. They seem to have unlimited time, a firm grasp of 2016 political trivia, and closed minds.
(Collect $200 every time they say "But he's not a Democrat"