Looking for a wiki table editor that I can use as an individual led me down a rabbit whole of not-great software options. However, MediaWiki has a component for this, which looks pretty fabulous. The second link below is the test page, and the table UI is pretty nice.
https://www.mediawiki.org/wiki/Extension:VisualEditor
https://www.mediawiki.org/wiki/VisualEditor:Test
Michael,
Is there any way we can install this on the w3c wiki? That would be the best solution. I'm sure we're not the only team that would like an easier way to put tables in wikis.
If that's not feasible, I will continue digging into extensions and online generators of various stripes. I haven't found one I like yet.