I'm not painting all Bernie supporters with the same brush, I'm having a discussion here regarding the people here who do it. And Cenk gave Sanders cover for his endorsement withdrawal by saying he wasn't accepting endorsements. In his statement, Sanders acknowledged that people had a problem with it, but didn't take any responsibility for the endorsement in the first place. Decisions like that gave me a lot of pause, which is why it was reassuring to see him take responsibility for his bad vote and when I heard AOC was taking him to task over the Rogan misstep. I'm a lot less worried about Sanders and his inner circle than I was when the Cenk endorsement happened.
Okay, but you started this conversation with a hypothetical:
"It's going to be interesting to see people change their minds on SuperPACs [...]"
"People" is a generic descriptor. Nobody here can have a conversation with "people." This is a vague, generic grouping that doesn't tell us anything meaningful. You say "people will change their mind [in this hypothetical situation]" and that's not a conversation, that's a statement you're making implying a judgment of them.
It's the difference between this, and starting the conversation with:
"Would anyone here disappointed that Warren changed her stance on Super PACs feel the same if they endorsed the Democrat candidate in the general election?"
This is a much less judgmental question and opens the floor for discussion. I don't say this to be mean or jump all over you. I'm trying to explain why your original post comes off as casting judgment and implicitly calling "people" hypocrites. The view that Warren flip flopped on her stance on Super PACs in the primary, and that is disappointing or worthy of criticism, is not necessarily the same as "we don't want Super PACs at all in the general." Individual supporters can have different views on this. That's a conversation worth having. It's also not a conversation with actual specific posters, not "people."