Your thread was deleted because it was just a piece of vague information that did not call for any discussion. The title of the thread said about some great advise but the content did not mention anything about the same. The point you brought up here in this explanation was also not mentioned in that thread. Having ideas or thoughts is not sufficient. You must put it across clearly so that it becomes meaningful and calls for a valuable discussion.
Please note that editors may not delete all such threads but they may have to resort to such actions in between so that the authors do not feel that they are on the right path. It is sort of a wake up call. Put in some more time and effort while drafting contents and revise and redraft the same so that it adheres to the guidelines and is clear in conception and conveying.
'Knowledge is knowing a Tomato is a fruit. Wisdom is not putting it in a fruit salad.' -Miles Kington