I used this to tunnel my traffic over SSH in high school. That allowed me to visit blocked websites like Reddit or YouTube. The school IT administrators had already blocked common VPN providers.
Yeah same with me in university. They eventually started rate-limiting each SSH connection to ~50kB/sec, so I ran a bunch of separate SSH connections, made them as upstreams on a tinyproxy - and then used proxychains to force apps to use that tinyproxy tunnel (a lot of apps back then didn't allow you to configure a proxy).
If you're already using SSH as the transport, what differentiates this from openssh's built-in "DynamicForward" SOCKS proxy?