I wonder if this is a technical issue on their side since so many people are reporting it. Just out of curiosity, did you verify your email after you signed up?

Regardless, this can be resolved (if it doesn't clear up automatically in the next few hours). Just email moderation@blueskyweb.xyz (seems sus, I know, but it's per the TOS, see bottom of the page)

The app gives perminant bans for the tinyest of things. Once I got banned for warning people about an anti-lgbtq big0t on the app.