There is simply no user named "Chaosdreamer" on root-me. If you use "chaosdreamer2" as onsitename (case sensitive) it seems to work.
Maybe there is confusion about how the linking works, and here is a brief explaination.
You have to enter your onsitename and onsitemail for a site, which are the credentials you use on root-me (or any other site being linked)
wechall then asks the site if this combination exists on the site.
This way your nicknames can differ across the sites you play.
If the onsitemail differs from your wechallmail, a confirmation is sent, so you cannot link other people accounts.
The onsitemails are never saved to the database, however they currently occur in the logfiles.
Logfiles are removed from the server once in a week, but still i think onsitemails should not be recorded anywhere (todo)
The onsitenames, of course, have to be stored in the "RegAt" table, so we know which username has to be sent when you update your scores on a site.
The account "Chaosdreamer" was just not activated. It was possible to link unactivated accounts, which has been fixed on root-me (thx g0uz)
The geeks shall inherit the properties and methods of object earth.