While this might sound unsettling at first, there's a few things we want to get out right away. Please read them carefully, because this isn't as much a security risk as some currently believe:
- Your account cannot be hacked with this information
- There is no personal security risk
- There is no online security risk
What can't happen is that the information cannot be used to trace screenshots to your IP, allowing someone to identify where you lived. The account number isn't a big deal, either. That number is already accessible via the Armory. The account number cannot be used to hack your account. While we all may not want this information divulged publicly on principle, it can't be used to hurt you, even if it is spooky.
We have been able to reproduce the watermark (or whatever the artifacts may be) fairly simply. Again, though, there is no information in these watermarks that connect your screenshots to you, the person behind your keyboard, living on Dreary Lane. Only to connect your public display of cheating to your World of Warcraft account and/or private server.