Lately we've seen a bunch of question about Windows, english usage, general programming questions, and when we should take the dog to a walk... so, I was thinking that instead of writing up a "custom" reason each time... some should be prewritten, no? Any ideas of what this text should say?
I actually prefer that people are encouraged to think of a constructive reason for closing (for off-topic) and articulate it prior to clicking the button.
It may only be a small cognitive hurdle, but it does encourage thoughtful votes to close, at least from the first voter, rather than just the cost of a click.
I think this contributes to the overall high quality nature of the content management on the site and I don't think it is worth trading away for a very small gain in perceived convenience.
We aren't at the size yet—from my perspective visiting daily—where the volume of posts would make this a more compelling argument. Until we are, I think we should try and preserve the thoughtful, measured environment that has been cultivated to date.