I'm wondering if questions about whether a given programming practice has ever been the cause of a large problem, would be on topic here.
Note that when I say "programming practice" I mean a way of using one or more programming languages, not features of programming languages.
I'm fairly certain that any question starting with "What are the worst ways that..." would be considered off-topic, so I would word questions like these in a definitely answerable way. "Has the Singleton Pattern ever gone badly wrong?" is a yes or no question, (which I already know the answer to.) I'm interested in knowing whether a particular technique has a failure mode and how bad it was if so, not in hearing a bunch of horror stories like this question that was marked non-constructive produced or making fun of obviously bad ideas.
(I asked this same question on SO's meta and was told it was off-topic.)