Actually Grouply is a cool idea, but poorly implemented. An application where you can see and manage all your Yahoo and Google groups and friend other group members is a cool idea. A feature that offers to connect you with others who are in your groups that have already signed up could be a good thing, as well. But an application with a feature that looks like that, but that spams everybody in every group you’ve ever joined, is a botch. The application is otherwise wonky… e.g. every time I log in, it takes me through the same setup processes I’ve already stepped through.
I should have looked before I leapt. Grouply’s had issues for months. Search on “grouply spam” and you get 14,300 hits. (Maybe 14,301, after I post this.) There’s an anti-grouply site called “Ungrouply Behavior.”
Grouply does appear to be working with Yahoo users to fix its problems. There’s a Yahoo Group set up for that purpose, called GrouplyImprovements.
If you fall into Grouply and don’t want to be there, you can leave grouply (and I have). You should also change your Yahoo groups password, just in case.