Virtue signaling as in, making sure people knows she's progressive by when it came to force the vote, when she needed to vote progressively, she didn't. She makes sure everyone is progressive but when it comes down to it, she's hasn't seemed to do much, but everyone calls her an all star because she says the words that progressives want to hear.
Also, some people just don't agree with her world view, which is perfectly fine. We are so astronomically in debt that simply saying you want to keep allowing spending of money we haven't had in decades feels very reckless, at least without the caveat that there needs to be serious cuts. The government is incredibly bloated and we are going to default hard at some point if we don't reign it in. There's nuance to be discussed here but I'm afraid kbin is gonna be just like Reddit where anyone that tries to open discussion or get answers will just be downvoted and hated on for simply not going with the site's progressive leaning.
I'm still waiting for someone to provide me more than just "she is fighting the corporate rot" when I haven't really actually seen any proof of that from her beyond just lots of talk and grandstanding on social media. That's the virtue signaling I'm referring to. And please don't do the "whataboutisms" with Republican members of congress because they certainly do it too and I'll call them out for it, but the current focus is on AOC.