A pattern I observe. Someone posts a question that lacks some critical information. They write coherently and supply a fair amount of detail -- it's not just 'plz send me the codez', and they don't seem to have fundamental telepathic expectations. None the less, not enough information to answer. So, it seems somewhat churlish to vote to close before giving them a bit of time to respond to comments requesting more information.
However, out of sight, out of mind. If they don't ever come back and improve the question, it just sits there being relatively useless, and serving as a mediocre example.
I wish I could leave some sort of flag that caused me to be pinged in, oh, a week, if there were no edits.
I offer one example of the species: this question.