I wish I could believe this topic if it had a lot more proof showing that you weren't signing in and sending messages that weren't sent by you. It's super easy to set up steam guard, if you don't set it up honestly you aren't really smart because steam guard is very safe in my opinion, people needing codes to log into steam prevents conflicts like this. It's very easy to trick people by telling them it wasn't you so this is hard to tell if it is real or fake. This has happened before on the forums (fake and real) and I remember I did not post crap about blockscity and I even proved that it wasn't me (different IP address comparison).
I feel like you're the troll all along!