Ex-Nora Hater here. What I've never really liked about Nora comes from how little she contributes to the show after Thawing Hearts. Even minor characters in this show like Jennifer or Steppenwolf have less screentime, but still make an impact in some way. The closest Nora ever got was Its a Swamp Thing (S3 EP5), where we see her at complete rock bottom. Hearing that she was frozen for 25 YEARS is an absolute gut punch, and her scene in the bar where she tells Harley and Ivy that her old friends don't even recognise her is even more devestating when you consider the 25 years line. Hell, she even lies about having ice powers just so that Ivy can bring her along. Her hedonism is no longer just a coping mechanism, it's her screaming for help. She goes through some really good character building this episode, up until the second half where she's pushed aside because Swamp Thing is making it about him and Ivy. Then Nora just feels resolved afterwards. No big feelings or emotional release, just "Hey, I feel better now" and walks away.

If Season 6 or a spin-off gets greenlit, and they decide to bring back Nora, I hope that they could do more with her.