It sounds as if you may be a bit miffed that an old topic has been posted in a new thread, even though you were gracious enough to contribute your knowledge. I'm relatively new to this site too & I'm sure there are many topics that I would be interested in & questions I may have or will have that are already covered somewhere on this site, but with almost 18,000 topics just in this here "General" section alone and no index or other way to find the threads one would want, it is inevitable that new threads on the same topics will arise. I would have never found the earlier discussions on this topic but have found this one quite informative. If you would post links to the earlier threads that would be helpful too.
I would like to thank you & all the other contributors to this thread and hope you all will forgive us newcomers and continue to share your knowledge and expertise. It is very much appreciated,