I've already sent this through "feedback" but since I never got an answer with my previous reports through it, I'm reporting this here again.
Yesterday I posted something and this morning I saw that my post has been crawled by a meta-site on the name of "My Weblog". This was very weird so I looked at the general settings of my blog and everything there had been reset to the default state(where all the fields were set to the value when you first create a new blog). Can anyone let me know what's happened? Can this be assured that it didn't affect any other settings or post?