I like teams, there are a lot of them on Etsy each one with a different purpose, I happen to belong to three, one I created myself (Which I will probably close, none of the members are participating, oh well), Bloggers Unite! I also belong to the Etsy Blog Team and Paper Designs 4 U. Teams give a sense of community and purpose, they're great for meeting other artists and making new friends. They also give Etsians a way to band together for one cause; like these teams
The largest team, Artist Aid, is made up of 434 members. There are no requirements to join, it simply asks to donate one piece of work to the cause.