For one, I don't hate Canon and Namine Ritsu. Canon just supported a politician (just the mention of about ANY politician causes rabid outrage between both parties) and even apologised. Ritsu didn't even have pro-Trump views when he was created. I still like Ritsu and this incident hasn't soiled my perspective on him.
But as for Crecia Selestawa, she has been utterly stained in my eyes after her creator turned out to be emotionally abusing her friends for a long time while under the radar. She was one of the UTAUloids popular enough to appear in lots of medleys, but seeing her now just rubs me the wrong way. Unlike Canon, Crecia has a clear connection with her creator as Hanabi used Crecia as one of her tools for her abuse: by making everything have to be about Crecia and using her UTAUloid as an idealized fantasy version of her. Hanabi's friends turned victims hate seeing Crecia now since she's a symbol of their abuser.
That reminds me, I saw a
recent medley which certainly hasn't aged well. (I don't blame the medley's creator since they didn't know about the news back then.) It contains both Crecia Selestawa and Sakasa Shiki (the latter's creator was one of the abuse victims of the former's), but also oddly portrays Crecia with a demonic raspy voice (since she represents Hakaine Maiko in the original song). Clearly this was a coincidence, but upon watching it again I began to think "Wait, you knew all along?" and even then I can't help but imagine that this was a final middle finger to Hanabi.