As far as famous/notable people go, skeptics.stackexchange works perfectly well for those questions.
In general however focusing on "he said, she said" is bad. I might argue I wide arrange of positions depending on the context. Sometimes I play devils advocate to make points.
Focusing on actual content instead of focusing on what someone said in a single instance if often better.
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.