Unsurprising coming from an ISIS apologist.
Oh yes because Sanders and ISIS have sooo much in common...idiot.
Both are America-bashing terrorists. Sanders is an economic terrorist and ISIS are Islamic terrorists.
Sanders is running for president but is an American-bashing terrorist? No logic is needed when talking to you clearly.
Some of these Hillary supporters are completely unhinged.
Clinton supporters are more conservative then Sanders suporters so it is not suprising to see some supporters name call and dismiss Sanders instead of talking about the issues.
Atlas is a funny place. On most sites, the online Sandernista vanguard will metaphorically send you to the gulag if you dare to voice opposition to their saint or question the wisdom of spammed online polls. They are also relentlessly negative against Hillary Clinton, even using GOP talking points and faux scandals against her to try to derail her candidacy. If you doubt any of this, go read the comments on any FiveThirtyEight article where they suggest Sanders is unlikely to win the Democratic nomination. They accuse anyone who says so of being corporatist hacks/Hillary shills/Wall Street shills. By contrast, Hillary supporters rarely attack Sanders.
On Atlas though, the dynamic seems to be reversed. I think we thrive on being contrarian, honestly. Back in early 2014/early to mid 2015 this site despised Hillary with a passion and I was one of her few vocal supporters. Sanders was met with nearly universal praise and adulation when he was just a random socialist fringe candidate polling at 4% against Hillary's ~70%. Now that Sanders has tons of online fanboys extolling his every move while Hillary takes abuse endlessly from all sides, the dynamic has changed. Of course, the exodus of many users from Atlas to AAD probably had some impact as well, along with the steady influx of new users as we get closer to the election.
The attitude you describe as being prevalent on Atlas is even more prevalent on AH.com. I think you're right that the Reddit crowd's ridiculous level of support of Sanders has made people on more serious political discussion forums like him less. And I'm (kind of) a Sanders supporter.