> There was a time in my life when I was "unbanked" and Bitcoin was the only way I could transact online.

This really needs said louder. Writing off the entirety of cryptocurrency as "useless" betrays either stunning ignorance or immense privilege (or possibly even both). Even in the "developed" world (let alone "developing") there are countless people whom the legacy financial system does not serve yet is happy to exploit; cryptocurrency ain't some silver bullet, but it does address quite a few of the legacy system's injustices.