Good questions Rug pulls are prevented not by reputation but by protocol, bitcoin being locked into delivery stages (timelocks/multisigs/penalties). Future profits is harder to enforce. To solve this a founder, who wants to provide investors with assurances of future profits, will have to use a combination of reputation/endorsement, but also potentially associating with a legal structure (be it a state court or a private court), by having a claim over the keys that were used in the investment transaction an investor has a proof of investment. Regarding KYC, Angor is a protocol and as such does not deal with that, it is up to the founder/investor to decide about KYC. For example a founder that wants to have source of funds will only approve investors that identify themselves.