Consider this recent question: "Should I start edx cs50 course before any other JavaScript course, or in the middle, or after?"
This person _should_ get downvoted and told that this is not an appropriate question. Hopefully they come around after a while and learn what kinds of questions are helpful for the _community_ at large. Does it suck that they feel unwelcome? Yes. But that doesn't mean users should be forced to "be nice" just because of it.