
Yeah, honestly, companies that aren’t publicly traded and just do their own thing tend to be fine to okay-ish. I like Valve. Their software works for me, they were fine to work with, and I like some of the projects they’ve helped advance.
I hesitate to say that they ‘get a free pass’. I don’t think any company should get that unless they like… cured aging and gave it away for free or something, but for the time being, they’re decent.
I’d also suggest the folks at GoG are pretty good, too.

Seems pretty reasonable to use it as a grammar checker. As long as it’s not changing content, just form or readability, that seems like a pretty decent use for it, at least with a purely educational resource like Wikipedia.