I wouldn't be surprised if they eventually did enter. I don't use FB personally, but I'm a big fan of the OSS efforts.

> biggest hurdle is trust, given its problematic record on data privacy

It is? FB is a corporation - much like Apple, Microsoft, Google & Amazon. Each of those have had their fair share of issues throughout the years.

Too easy to be polarised with stuff like this. FB produced good tech and supports it too - which is more than I can say for Google. But I'll use Google for their search & docs products, which is top notch. There are no heroes/villains.