Yes, I think this should be mentioned explicitly in the monthly threads.
My intentions were to decrease future occurences of duplicate posts, establish a standard of effort that should go into avoiding duplicate posts, and not hit Johannes' comment too hard because it was made before the standard was expressed and agreed upon.
This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you've seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.