We use the System Patches package heavily in development and testing, for adding customer-specific fixes/work-arounds, and for deploying fixes to customers between releases.
My directory of patches is by no means "official" but it's close. Eventually those will probably make it into some form of patch list kept somewhere in the packages repository.
I've thought about having it load a patch list/manifest file and offering some common patches, but the more I've thought about it, the more inclines I am to never go that far because if it's too easy, people will start slapping them on without thinking and not knowing what they do. :-)
A thread is fine for keeping user-submitted patches. Might want to add a warning to the first post to caution people against loading random patches without understanding what they do.