(You are not being asked to name the person who sent you the request. Thank you.)
For me, it was because I didn't know anything about the sender, and when I asked for... more (You are not being asked to name the person who sent you the request. Thank you.)
For me, it was because I didn't know anything about the sender, and when I asked for clarification, I received absolutely no reply, which made me assume that I was one of many people caught up in a barrage-request. No loss. ~