I'm a little on the fence about asking your personal dingus questions out loud. It's not quite old man yells at cloud but meh, I can take it or leave it. About the only thing I ever really do ask out loud is "who is this?" when hearing a song I don't know.
As helpful as this is, I'm usually not in a position to really do anything about it at that moment. I'm certainly not going to remember who Siri said was playing that song. So what I'd like is to be able to look back on the things I asked Siri at some later point. But you can't, it's all lost in the moment.