I was 'always' Gandalf (as I mentioned in my introduction). Unfortunately, on steem that id was already taken, so I used gtg initials (as in Gandalf the Grey).
On steemit.chat I'm Gandalf (join us there if you have some spare time :-))
Just recently, thanks to kindness of @masteryoda and @joseph I was able to finally get @gandalf account on steemit!