I've been debating putting one on sovbit.host but I run small relays. So I don't really think I'm going to be approached by a government entity any time soon, nor do I necessarily think that my blog needs one. Also, I don't really collect a lot of data on people, so even if I did get approached, I wouldn't really have anything that I could hand over.
Discussion
If I ran something more spicy, like I don't know, a Wikileaks clone or something, then maybe. But I don't think anything that I run necessarily needs it.