I recently happened across this question:
The OP asks about writing code in C/C++ to make a file "hidden or undeletable." Rather than close or downvote the question for its (rather obvious) flaws, the majority of the community jumped on the OP for "reek[ing] of viral intentions."
To me, that question doesn't necessarily only have applications in the malware market. But even if it does, is it within the purview of the community to close it for such? It's still a valid programming question, is it not? It just struck me as a bit much that three different commenters asked about possible legitimate uses for such code, with one going so far as to warn the OP that IPs are logged at SO.