Wikis always seem to produce second rate documentation, except maybe the ones that are designed specifically around software projects. There are any number of tools out there that produce better documentation and it can be stored alongside the source code in a git repository to avoid drift between the code and the associated documentation.
Matrix for example would be better.
Nope, should be on a forum or wiki or normal doc
Not even a forum.
Documentation is not a snapshot of a discussion. It largely falls into two categories
The first is vital. The second is really really useful.
Wikis always seem to produce second rate documentation, except maybe the ones that are designed specifically around software projects. There are any number of tools out there that produce better documentation and it can be stored alongside the source code in a git repository to avoid drift between the code and the associated documentation.
They are only second rate if not used.