As someone who has been a software for 30+ years, and who now uses Claude to do 90% of their work I disagree that it is killing open source. I've not once in 30 years had the time or the energy to make an opensource project. Since using Claude I have made 3, all GPL2 Licensed. They are small, not world changing, but it has empowered me to give back somehow. Opensource projects use to be passion projects, until people went to monetize them.
Stackoverflow. Let's be honest, 75% of what was there was crap, how many times have you thought you found the answer to your question just to find out it was wrong. With Claude if I am stuck on a bug, I give it the error, I give it the file the code is in, and 99 times out of 100 it can fix it in seconds vs me spending an hour or two trying to find the solution. Stackoverflow was great in the beginning but over time it stopped being useful.