I've invented this heuristic: if the page that describes the project uses the word "solutions", then they'll attempt to use "open source" to obtain free labour, but will distribute the revenues only amongst those people who actually have control.
I really don't get what you're implying. I don't see any problem with the photos on the mattermost front page.
It's "open source" so that they save on developer costs, not for ideological reasons, and you can tell from the photos on their front page - that's what I was implying.
Think "enterprise", rather than "racism".
I think the point was that open source hasn't often been supported by companies serving these kinds of markets and the interests of the broader community are often sidelined.