Questions on StackExchange sites need to be presented in such a way that there can be an answer that is "the answer". As I read the question, every possible answer to it would be equally valid.
The question asks:
how should I represent the separate words in the filename?
I don't see how this can be answered where there aren't 15 different answers, giving 15 different opinions, all equally valid.
As for other naming convention questions being valid, thanks for bringing them up, we'll go through them and clean up those that slipped through the cracks. The fact that they exist on the site, doesn't make this one or any future questions more constructive.
Reading through the relevant piece of FAQ, constructive subjective questions:
- inspire answers that explain “why” and “how”.
- tend to have long, not short, answers.
- have a constructive, fair, and impartial tone.
- invite sharing experiences over opinions.
- insist that opinion be backed up with facts and references.
- are more than just mindless social fun.
So I think (if correctly worded) questions on naming conventions should be on topic here. They are very relevant to programmers, there are often very practical considerations and experiences that form the basis for answers, and it's easy to leave out opinions using votes, comments, downvotes, and moderation.
Note / disclosure: I personally asked this question on CSS naming conventions, and the accepted answer was (in my opinion) of the good subjective kind: substantial, based on experience, explaining the "why", backed up by references, and with a constructive, fair and impartial tone.
Note 2: I do understand why naming conventions might be considered "not constructive", as it's indeed hard (if not: impossible) to have one correct answer. But then again, looking at the top questions by votes, there are several great questions that (sh/w)ould be closed by that same standard (e.g. 1, 2, 3, 4, 5, etc.) - which is probably why we now have the "Good Subjective / Bad Subjective" distinction.