Full disclosure (or as much as I can provide): This is a debate we're currently having in the Mod forum.
The issue is that there was a public vote on how we handle Lady Gaga quite recently, and the result was that posters voted in her polls wish to remain anonymous, with better moderation.
The interpretation of that is that posters can no longer change their Chromatica poll votes, and mods will directly reach out to any votes deemed to have been offensive and reprimand them.
The sticking point seems to be anonymity. The current consensus in the mod forum is that we don't want to dredge up Lady Gaga poll votes from years ago and form a witch hunt.
Personally, I'm not entirely sure people who voted in that poll were clear on what exactly they were voting for, but that's where we're at with it