I don't agree, I think people have been conditioned to think stuff is free when it isn't in practical reality.
Linux is free, but VMs running Linux are not free. (What's linux without a machine to run it on?)
Internet resources are free in a sense, but the sites that host and propagate them, like say Github, have many bills to pay.
When you chat with someone using Signal you're using an app that runs up an AWS bill of millions of dollars each month. And those routers your message hopped across, someone manufactured and sold them (probably Cisco), and someone pays the electricity bill for them.
When something has a cost someone is paying for it. For Nostr, there is a collective "nostr bill" to pay each month, including developer reimbursement, and the donations and subscriptions can't come anywhere close to covering that bill. So something is wrong here. We're getting all this expert time for free, all this expensive infra for free. That is never healthy imo.
Some things that really are free are sunshine and rain. And hugs if you're lucky.