I guess I just place such a high value on my own privacy, especially in spiritual matters, that it would NEVER cross my mind to ask someone why they were released.
Only a couple months ago, I was called as the RS chorister. A couple weeks ago, I asked to be released due to personal worthiness. So, I was released on Sunday, and the previous chorister asked me why. I was taken aback because I would never ask someone that question. Then last night at Mid-Single FHE, others asked!
I just don't know. I suppose I could be sensitive to private spiritual matters because I have spent the vast majority of my adult life not worthy for callings and sacrament, so not taking about those things is second nature to me. Maybe it isn't such a big deal for other people.