OneNote is fascinating; it's a great product Microsoft have hardly marketed. Possibly as it's the antithesis of Sharepoint, which is several orders of magnitude harder than installing MediaWiki and therefore people feel committed to using it.
SharePoint is also fascinating. It has an amazing set of features that make total sense from an engineering an features point of view. Yet in my experience it is slow, buggy, and most of the features are never used properly.
It has proper versioning and locking that should make team work much simpler. But the philosophy is never really explained and people are just told to interact with features and let the magic solve their problems.
Yet people have been doing versioning and locking for donkeys years without ever needing any help, you just make a new file with V2 at the end. We just need software to provide a little consistency and surface conflicts. SharePoint obscures this behind feature bloat and infrastructure.
