Q:

Noun phrases as question titles

I find that many technical (or at least, problem-oriented) questions are in fact best presented using a noun phrase (or present participle phrase) as a title, rather than something which is grammatically a question.
There are thousands of examples, but here is a random selection from questions relating to arrows:
Two-way arrow as when defining adjoint pairs
Circles at the ends of arrows 
Gaps between arrows and labels
I think it's easy to see why: preamble such as "Is there are a way to..." or "How do I..." is usually fluff that distracts from the task of identifying the problem.
Do other people find this a useful rule of thumb? If so, should it be in the guidelines?

A:

My answer is probably endangered, because it is just opinion based ;-)
I agree with the OP's suggestion that many questions are titled confusingly, and I do not even claim, that I have not done so in the past. A clear, precise shorter statement would be more helpful than a long title of the kind stated in the OP.
What 'annoys' me more often are confusing question body, contradicting inside or written paradoxes compared to the title such that is hardly possible to answer the question or review/editing it without changing the whole content of it.
I would also suggest to make some additions to the guidelines, about the title line of a question, but I do not recommend strict grammar rules.

