I'm a relative newcomer compared to the residents above but I still feel I can be one to say "You're most certainly welcome"
I felt very much the same way you do when I crept out of the shadows here a few years back, only I was too shy to say it. I'm really glad you did. Everyone here has been very kind and so unbelievably helpful. Honestly, APUG feels like the vault for 180 odd years of photographic knowledge; Photography's Brain Trust that amateurs such as myself are very fortunate to be able to tap into whenever we have a question or a curiosity that needs satisfying.
So, welcome Pdeeh, from Australia (and a fellow APUG Groupie.... urgghhh, 'groupie'... bit undignified! I'll think of something better and then promise I won't share my inanity in future )