Not sure about the scam, but my bayesian bullshit filter is triggered by the "unlike all the evil for-profit corporations, we're a white'n'fluffy company aiming for the greater good".
They have proven this by numerous contributions to FLOSS [0], releasing laptops with kill switches [1] and neutralized Intel ME [2], FSF-approved OS [3], FSF-endorsed phone [4] and so on.
Well, in this case good for them and shame on my bayesian filter.
I wish I were an "accredited investor according to Rule 501 under the Securities Act of 1933", because from your links it looks like a kind of good I'd be willing to invest in.
So what? You're investing to make money. For those purposes, it's much better for you if they are actually as bad or worse than any other company. Nobody makes big money actually respecting the principles they claim
[0] https://puri.sm/posts/purism-and-linux-5-13/
[1] https://puri.sm/security/
[2] https://puri.sm/projects/coreboot/
[3] https://www.fsf.org/news/fsf-adds-pureos-to-list-of-endorsed...
[4] https://www.fsf.org/givingguide/v11/