Fair point, I think I’m approaching that view of just doing it, but I’m not quite there yet. You said it yourself that at least it makes them question the value of said task… and I don’t think bringing it up shines back on me negatively. Regardless I appreciate your thoughts.
Yeah I can see that now, but for me "I don't know, I was just told" = "Don't know, don't care" and "Let me get back to you" = "I am ending this line of discussion. Don't bring it up again".
If there's a sense of reflection in the requester, it doesn't survive past the end of conversation with me.