I know exactly what you mean. I do not like that, either. There are what, 70,000 members here, but only 300-400 of us participate regularly.
I have also noticed that there are some newbies who are obviously not new to cake decorating, as their first post asks about complicated cake work, fondant inlays, chocolate wraps, etc. A little intro when they ask for help with these techniques, especially about their experience level, would be nice. It's easy to assume that just because it is a person's first post, that means that they're new to decorating, but I could be so very wrong. I would rather discourage someone with very little experience from taking on difficult techniques without some training, than to have them become totally discouraged with the outcome, then give up on cake decorating altogether.