When is a reminder a nag?
As Staff at my forum I make my best effort to participate in discussions, especially when I am explicitly mentioned.
But there have been a few times when I have said everything I could say in every way I could think of, and if a member has a problem but refuses to accept or even try my offered solution(s) I sometimes see no use in reiterating to deaf ears.
Cold? Perhaps, but nobody, not even Staff, is obligated to participate in a discussion. We do so voluntarily not out of obligation.