An excellent idea. We could work out a standardized format and build wikis around them. We should come up with a name too. I think "patterns" would be good.
For those who don’t know, I believe that ‘jdougan’ is obliquely referencing the “C2 Wiki”, the first ever Wiki web site. Still available here: <https://wiki.c2.com/?PatternIndex=>
The OP is an excellent idea. But the times we've tried something like it the usual suspects abused it into near irrelevance. The most discussion I see around patterns is "dark patterns" in UX. If we are going to fully succeed the next time we have to find some way of keeping the usual suspects out of it.