GG meaning in Messaging ?

The Gorgeous Guy was the name given to a man whose photo appeared on an internet message board, with various posts describing his life. The photo was of Dan Baca, and it was later revealed to be an elaborate hoax, set up by Baca himself.

In May 2001, Dan Baca, a 29-year-old computer network engineer began to notice people were staring at him as he waited for his bus. Some people would start conversations with him, and then some people started taking photos of him. They appeared to be familiar with his routine, what clothes he wore, and what color his bag was. He was eventually told that his photo had been posted to an internet message board, Craigslist, on May 11, and there were numerous comments written about him. The thread, entitled "Gorgeous Guy @ 4th and Market at the MUNI/Amtrak Bus Stop (Mon-Fri)" became the most popular in the "missed connections" section. The picture's caption read "Gorgeous Guy", and the anonymous poster wanted to know who he was, and if they could meet up with him. Various posts that followed discussed various aspects of Baca's personal life, such as his facial features, his marital status, and his sexuality. They also discussed his schedule and who was going to date him. Baca eventually posted a message, asking people to stop talking to him and about him, but doing so caused more problems, and Baca had to resort to other forms of transport to get to work.