I know several people from the forum, and wouldn't be surprised if there are more than I "know" but don't know are here, and vice versa. I met two of them at a local training facility, one of them I met here but then we got together over time outside of the forum with our dogs. We took a training class together as well. I don't remember ever referring a stranger here, and honestly I don't really refer many people here at all. I find that most people I know are just "dog is my pet" people as opposed to people who would be interested in joining a web forum devoted to just GSD's.
I don't mind meeting people, but it's harder now meeting people from the forum because I find that most of the people here seem to be in the stage of life where their dog is their kid and they say they don't want kids, yada yada. Since I am married with a toddler, our dogs are still very much a part of our lives, but generally speaking, where we go so goes our 2 y/o. So it would be hard to meet up with other people as a rule of thumb unless they also had kid(s) they were bringing along. Hard to take a 2 y/o hiking in the woods, ya know? And most people don't want to meet at the local kid play area of a park. LOL