GIM was fun, but eventually your teammates move on in life. It's just the nature of the game.
If you're having trouble finding yourself a team and want to save yourself some GIM removal tickets, I recommend trying out the Realism game mode. It's slow xp (2x), but the people who can stick it out are usually very friendly and will treat you like a teammate! Plus, our trading post is very much like a vending machine-group bank. Everything is overpriced, but you can always pm for deals!