Don't know Ngreth? Let's just say it has something to do with http://www.eqtraders.com/ (the legendary EQ tradeskiller site if you didn't know).
Ngreth was an EQ dev for a period of time when a lot was done with tradeskills in the game. Maybe you loved the changes/additions and maybe you didn't, but they were being worked on with dedication for sure.
It's fair to say tradeskills haven't been a huge focus in new content in recent EQ times. But lots of tradeskillers still sub to the game. We're not aware of any significant EQ Dev recently moving on, so seeing Ngreth back looks like an add to the team. If you don't like tradeskills, that means some other dev has likely had that taken off there list to work on whatever tidbit is your favourite instead (see it's good to be optimistic).
In short, welcome back Ngreth!