in the short time that i have been a member I too have been amazed at the " one " poster's that ask a question and dont have the manners to pop in and say thank you, or tell us if the answer they got was helpful...............
2nd... this is a very very busy community, going by the numerous posts each day and i dont give a second thought to those members who join, and dont add to the boards. For some it may just be a bit of nerves in adding their first post, but their drive to join would surely in itself get that member to post..............this is also a very friendly site with the more experienced members giving a lot of their own abilities in answering queries and looking up this and that to assist us members asking a question..............When i joined last year i got myself into a dizzy ref easy jet.
joined, asked for advice, got it replied within 24 or less hours,
ref my first sentence on not giving thanks, I suppose there again even in the real world, there are many like that
harry