GGPO was launched in 2006 around the time when emulation of 3rd strike was just beginning to come out. The 3s room quickly became popular in the following years with a bunch of people frequenting the room on a daily basis. They eventually became familiar with each other.
The peak of GGPO 3s was around 2007-2009. There was a big mix of personalities including old time 3s players, new players, trolls and ragers. Inevitably there were quarrels in the 3s room sometimes as it had turned into a "chat room" of sorts, with each day turning out to be an eventful day. Some prominent regulars included 2Nasty, metric, Bars and Hooks, beast123 and toastedsub.
It was generally a friendly place for most people except for the "NSFW" links and images often being posted. Topics included girls, bodybuilding, 3rd strike and more. There were some truly hilarious moments over the years in the 3s room which was at times taken off GGPO because Capcom officially released 3sOE. But people always found ways around it officially or unofficially.
Images and videos sometimes came out of the GGPO 3s community. These include the following funny items as well as chat logs found on the GGPO chat log page.
In late 2014, GGPO was DDOS attacked at the same time as FightCade was launched. It has since been taken down indefinitely and most players have since found their way to FightCade.