I'm honestly not sure why there needs to be a limit on the number of groups your in, but I'll assume there is some reason. Either way, what I'd love to see are different TYPES of groups created to allow for different limits. Perhaps, say, Shops, Social, and Land... and then Social and Land might count against your account limits, but Shops would not. Right now I have most of my groups eaten up by shops that I paid to be in (for discounts, etc.) and I can't just leave and re-enter as needed.