If everyone is making money in the ecosystem, then who is losing money? In fact, most projects out there are simply the game of the greater fool - it's alright to be a fool, you just need to bring along a greater fool to recoup your losses.
The community has been discussing various strategies around the privacy problem but it's non-trivial. The problem is not simply set membership - which ring signature could solve - but also maintaining Sybil-proof.
Self-Sovereign Identity (SSI) platforms are emerging from the decentralization movement citing how they will replace the traditional Public Key Infrastructure (PKI) model where Certificate Authorities (CAs) are in charge of controlling the identities, but that will not be the case unless our society becomes more egalitarian. Until then, a hybrid of centralized and decentralized identity systems that are localized shall prevail.
In this post, I share the list of tools, products, and services that I’ve been using for myself and the rationale behind using them. It covers everything from a savings account, credit card, brokerage, cryptocurrency exchange, mortgage, and even utility account.