Don't EVER hesitate to send a messge or respond if you feel you have something to add. Your words do help out...even if the other person doesn't directly respond.
I was overwhelmed with the flood of posts and messages last week from guys who said something I said or did helped. I never guessed...sometimes I think I just ramble on sometimes.
Another observation is that the value of MS sometimes comes from that one person who says the right thing at the right time to give you an "a-ha" moment. More likely is that when taken as a whole, the value of MS is the cumulative wit, wisdom and experience we all offer in bits and pieces.