I don't really understand your hostility here. When I was a sysadmin, I was working on Windows NT and Digital UNIX systems, and we were taking the radical step of moving some of those systems to Debian. There was no hosted website, it was on-prem IT. In subsequent jobs I developed software that ran on various versions of UNIX/Linux, but they were on-prem installs too. By the time I worked in a company that had a SaaS offering, there was a whole team of people dedicated to setting up the operations side. I wrote back end application code, why would I ever need to set up a LAMP stack? At another company I did admittedly set up Apache and do a bit of PHP programming as glue to a Java back end, but once again... on-prem installs for enterprise clients.
I think you are seeing the world through your own lens of being an expert in web hosting. Sure, every software developer who used Linux before knows how to navigate a shell, and most software developers working in SaaS 15 years ago knew how to spin up a local web server. That doesn't mean they knew the names of every company offering web hosting services on the public internet, especially in America (assuming these Bitcoin devs were European), or that they knew about cPanel or Wordpress or whatever other PHP content management system. It's a completely different area of expertise.
I think you are seeing the world through your own lens of being an expert in web hosting. Sure, every software developer who used Linux before knows how to navigate a shell, and most software developers working in SaaS 15 years ago knew how to spin up a local web server. That doesn't mean they knew the names of every company offering web hosting services on the public internet, especially in America (assuming these Bitcoin devs were European), or that they knew about cPanel or Wordpress or whatever other PHP content management system. It's a completely different area of expertise.