In my experience, the overwhelming majority of the time people don't respond well. Example - people commit the Fallacy of Gray all the time. I haven't had much success when pointing this out and trying to explain it. But I do agree that it's something to strive towards.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.