First, the site takes him down, but he's back up, and
they're saying that happened because the account was flagged as a possible impersonation. I don't know what Bluesky's rules are about that, because when I searched for "JD Vance," I got various un-cancelled accounts that look like impersonations:

The one with the blue check is the real one, and maybe those others are marked clearly enough. The third account on that list, if you click through, says, in small print "(parody account lol)."
Anyway, what I'm more concerned about is whether JD Vance was able to make himself available for respectful conversation on Bluesky.
Here's his set of 3 posts, which highlight Justice Thomas's expression of skepticism about "experts."
Vance says hi like this: "Hello Bluesky, I've been told this app has become the place to go for common sense political discussion and analysis. So I'm thrilled to be here to engage with all of you." I can see that some people are reading that as trolling. It's easy to hear sarcasm.
Vance continues with a block of text from Thomas and the statement "I found Justice Thomas's concurrence on medical care for transgender youth quite illuminating. He argues that many of our so-called 'experts' have used bad arguments and substandard science to push experimental therapies on our youth." And he adds: "I might add that many of those scientists are receiving substantial resources from big pharma to push these medicines on kids. What do you think?"
Does Vance get the "common sense political discussion and analysis" he says, perhaps sarcastically, that he wants?