Pro staff added a few as well, my commercial group I added no one. It's larger than most and I made it a point not to add anyone. I'm certain it's also the largest of its kind and people are nuts over my forums because they are full of strong minded business people who believe in sharing.
Can't buy me or my friendship , I'm not for-sale. It's most likely the main reason people are attracted to the places I create.
We bring things and ideas outside of most groups. Free info share it's wonderful, while others pretend we do it.
I'm not really concerned about the place being the largest or the best either. As long as it helps someone that's the main goal. I think in time people will magnetize towards it as the same spam keeps hitting the others groups. You can see the other groups started to self promo there products. Not all the people are stupid , just some.