[smallerfish]

> in theory writing stuff in a wiki is useful but then try finding the information with, say, Confluence search.

If the company/team wiki isn't organized to optimize for browsing to relevant documentation, then you might as well use google docs (which excels at search and is terrible for browsability).

A reasonable percentage of effort documenting something in a wiki should be devoted to making sure that people actually can find it, otherwise you're in cleaning-closet-in-disused-bathroom territory.