They are right 🤣

I’m incline to say that there’s no way. I order to have secure payments you have to secure each and every step of the process. Without a big corporation under those steps no one in his right mind will gamble with payments

having a redundant system is feasible (I’m just a dev, not an architect so don’t take my words for granted) but it have to be designed and putted together … and prices are gonna skyrocket

No. The “single source of truth” is the instance hosting the community. If it goes down the community itself goes down with the ship. The only way to prevent it is to have a IT infrastructure that can provide redundancy

Even if the fediverse didn’t want to monetize on the userbase money are still needed to keep things running

Actually he wants to get rid of “blocking public posts”

Maybe I’m wrong (I’m on Lemmy since yesterday morning) but if you host your instance you’re only caching the communities you are interested in …if you never care about a community or interacted with an instance then those data will never reach your instance. Federated doesn’t imply full redundancy