It doesn't, since you're not repackaging or reselling. It's classical FUD as it is with any other license change in popular software. There already is a subscription. You already need the subscription for features even if you self host. The moment bitwarden pulls anything too greedy or suspicious there will be hard forks, and since vaultwarden already exists as a drop-in replacement for the official server, the API is well-known, those forks would be a massive problem for bitwarden as a company. Realistically, the single question is the same as it's been before the announcement: do you want to pay for comfort and to fund further official development, then go for bitwarden, or to use vaultwarden and self host it, and get more free features on your infra. OSS projects can pull fucky shit too, and die just like any other commercial product. You gotta trust someone.