I have had some beautiful medium to tall height snapdragons this year and I wanted to learn how to collect the seeds. Posted the question on the perennial forum at GW and a kind member told me how to accomplish this task..Gosh, those seeds are so fine; almost like dust.. Some things just aren't worth it or are more trouble than it is worth.

Do we have a forum related to seed collecting methods on this website? If not, is it possible to have one specifically for that purpose?

There is the Seed Forum, and a very good resource in the sticky at the top of the thread list:
The thread "The Ultimate Resource for Seed Collectors" in Seeds forum
Have you looked at that yet?