there is a rudeness beyond mentioning facts
Social norms of politeness vary. By the usual 'net norms the discussion on LW (including Eugine) is very polite.
Pointing out that black people don't get Nobels in hard sciences because the right tail of their IQ distribution doesn't reach that far is highly politically incorrect and might well be rude in the sense of making participants in the conversation uncomfortable, but that's precisely the valuable sense of which West Hunter speaks.
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.