Age does not necessarily bring wisdom, but it does bring experience. So does seat time in an LS, which doesn't necessarily have anything to do with your age. I'm a part of that "30+ crowd," but I only have about 16 months of seat time in an LS, so I'm sure there are younger members who have more seat time in the LS than I do. I probably have more seat time in internal combustion-powered vehicles than they have time on their beating hearts, but that doesn't mean that my experience is any more or less valuable than theirs.
Personally, I would listen more closely to the older members, because they do have more experience in general, but I really haven't seen anything that I would consider really bad advice in this thread. Of course, I am in the "30+ crowd," so my memory may be slipping.