This is a very interesting topic - I've never thought about it before in this way, but you are right. You spend YEARS writing your phd thesis, and in the end, no one is going to read that ?! What a waste! I've studied computer sciences myself but in the end, I didn't even use the knowledge that I gained in university. I taught myself the most! So I'm sure you'll go your way and I'm excited to read about your projects in the future. Keep up the good work and don't let other people pull you down !