I'm making an empirical observation that the questions of this kind that I've seen have turned out, in practice, to not be useful. I'm easily disproven though -- show an example of a forum thread where a "why doesn't Arc have X?" did turn out to be useful.
I can then revise my how-to to describe which kinds of "why doesn't Arc have X?" questions are useful, or drop that part altogether.
Your thoughts certainly have merit - I bet the majority of these questions are in fact just complaints.
That said my comment is based on common sense, thus I'm not going to bother attempting to prove/disprove this kind of stuff. (edit: and I'm not requesting you change anything because your intent is also easily proven).
Changed my mind ^_^. I think the post is stronger if it makes one point ("ask how do I do X") and makes it well, without wandering off and also talking about something else.
If I think of a more cogent argument for when asking "why doesn't Arc have X?" is or isn't useful, I'll put that in another post.
