I get what you're saying and I'd like to see more effective marketing by Steemit as well, but on the optimization point, you're way off base.

All those companies spend lots of money on optimizing their compute infrastructure. Google is especially famous for this and has in several cases come up with what might be called "radical" design choices to optimize their infrastructure involving hardware as well as software optimizations. Do a few google searches and you'll find plenty of articles on this topic.