The reason it received a warning was because the OP consisted entirely of this:
Do you think this was good start for a reasonable discussion of the question?
The question itself is perfectly reasonable, and it would be fine to start a new thread in the Quarantine Zone about it. But starting off by ridiculing the proposition was deliberate trolling. It might have been permissible if it had started in the Pit, but it was pretty stupid even for that.