I could argue that this is the sort of thing a non-profit ought to figure out before soliciting donations. At present I can find no record of the Bitcoin Foundation having filed for nonprofit status, and they don't explain their corporate structure on their website. You can't just say you're a nonprofit entity, there are rules about how you must apply for that status and what sort of public declarations you must make.
How do you know, for example, that it's not a scam? According to the letter, BF it is incorporated in DC and has offices in Seattle, but good luck finding the address or any other information. Regulators are not psychic, and they're well within their rights to say 'stop soliciting money from the general public until you've made the requisite declarations,' because entities that solicit money without having their paperwork in order often turn out to be operating illegally.
How do you know, for example, that it's not a scam? According to the letter, BF it is incorporated in DC and has offices in Seattle, but good luck finding the address or any other information. Regulators are not psychic, and they're well within their rights to say 'stop soliciting money from the general public until you've made the requisite declarations,' because entities that solicit money without having their paperwork in order often turn out to be operating illegally.