The reason title length exist
Because it's useful to prevent spam on most of the other site, you would not like to see bunch of 1 character question flooding.
I already meet the situation a few time before, that I named the question properly, but it's still under 15 character, for example:
Repeat average have only 14 char, inconveniently just below 15 character limit although it being the best title I can use to explain the problem.
What I actually want to say
I know it's difficult to change title length specifically just for one site, and it's not a huge inconvenience to a point where it should be change immediately, but there aren't any meta question that talked about this question, so I am putting it up here to gather your thoughts about this feature that may can be improved.
If we can, I am thinking of removing the title length limitation and only limit to at least have title(or title length > 0), or we can lower the limit to 10/5 bytes, allowing some short terms that perfectly describe the problem to be used in title, let anyone scrolling through the question list have a better understanding of what you question might be about in the first place.