I am not sure how you would resolve a public key (likely stealth pubkey) to a real person. How does this compromise anonymity more than any other form of crypto?
First.. I apologize to everyone else (but the troll Tulsene) for my anger, I shouldn't let trolls create anger, its what they want.
I'm guessing the way that could be linked is when you're using clearnet and you can see your IP on irc, could be linked through what's called "coincidental occurrence"
ie. watching what IP is active at certain times when transactions happen, plus if they are a seller they could guesstimate a link between IP and the transaction.
This is just my best guess of the process someone might use.
I thought I read somewhere that's how bitcoin transactions were being traced - coincidental occurrence / pattern analysis.