I think I figured it out!!!
It was Gaffer Tape all along! No wonder he disappeared for a few days! Makes perfect sense now! Thanks for the hint Fink. I would have never thought to compare their sigs and realize how very similar they are, had you not made the comment about inside jokes and the answer jumping out. GL: underware in space, Gaffer: lingerie in space, DGT: brassieres in space. Haha!
Hmmm, now I am also starting to suspect Gaffer Tape of actually being George Lucas...