Are they not compromised or more likely easily compromised considering they don't even have the resources to secure and legally fight against government interferences?
I suppose that any single pod could be compromised fairly easily, and some of the larger pods have a large number/portion of users, so just compromising some of the larger pods could be sufficient.
Also, iirc, Diaspora* has been said to have some security and privacy concerns,
But I thought it would be good to mention that there isn't really a single "Disapora*" which can be told to give up all the data for all users, because different users use different pods. (And I think a collection of pods can be somewhat isolated from the rest maybe? I'm not sure.)