It's simple... just like your own nick micky77. It's just a nick, it doesn't tell anyone anything about the real person behind it... just like ">" or ". .. ... .... ....." or "szc" or anything else for that matter. I feel like I shouldn't have nick, but forum engine does not allow us to have empty nick name field inside your profile. So, putting ">" seemed like logical solution... just like inside the terminal ">". If nothing else is there, means line is empty.
So, as you can see, there are no secrets here.