I think your outburst might be rooted in a misunderstanding.
As stated in a few other places in this thread, the software remains 100% free, including for commercial purposes.
In order to make use of the build server at caddyserver.com, you need to have either a personal or commercial license. The build server provides precompiled binaries with your customized selection of plugins included.
The use of the build server is in no way necessary for the deployment of Caddy in any circumstance.