Suikoguy
I whinny my fervor lowly, for his length is not as great as those of the Hylian war stallions
Most of the "Bernie stans" I know care a lot more about policy than the man
I think the definition has shifted a bit.
It's basically now refers people who continue to bring up the primary, over a year later.
Then you have progressives who have moved on, and are focused on policy.
Then you have progressives who have moved on, but support the idea of marginalizing social issues. Sometimes these people get referred to as "Bernie stans" since Sanders himself has supported the idea.