I was editing this post which had several mistakes, post, starting with the question title (it was ambiguous). The most reasonable title which I considered writing was "Will vs Would" since the OP's question was mainly based on that, as they weren't able to understand the difference between these two terms in the sentence structure. But when I edited the title and contents of the body, and hit the edit button, it popped an error message: Title need to be 15 character or longer.
Why is it a necessary for question titles to have 15 character or longer word format when they can simply use shorter terms for describing their question satisfactorily?
I have also seen people asking questions with titles that are literally the whole question put in the title column, and only the sentence present in the body section which is to be acted upon. Is that a good practice while asking questions? (I currently can't find an example for the same, but I assure you I have seen this, many times in fact. Will add the link when I find one.)
On the other hand, I have also seen people writing the question in the title and the same thing again in the body section. I am literally confused which one among them is a good practice? E.g this post has this type of writing format.
Also, I have seen error message prompting that the question title already exists. Why are questions with the same title rules out when they could possibly have different level of needs or answers?