Well, considering that one of the pair took it upon himself to question whether or not a guy was qualified to have a certain username on an internet forum....you gotta wonder.
I wish these gentlemen would find a way to share their knowledge in a less pompous manner.
Unfortunately I've been a little absent from the forum, so I couldn't notice they were no longer posting. I agree with you. Nevertheless, I would welcome them if they decide to show up.
Anyway, sometimes stopping is great to become better at something: when we stop we have time to think, to reflect and become better in form and content. To speak up is to give life to our ideas, it's a path to communication, but as well I think it's always good we think 10 times before we start to speak something, and in most of time the least we say, we least bad consequences we create!