Did they take it back because of this post in hacker news or because they didn't like the higher salary request.

Yeah that's probably for the best. They sound like cheapskates anyway. Next job offer, tell them you want 130k and let them offer 110k. Show them you're a team player by offering to meet in the middle on salary at 120k, but ask for more equity to make up for the 10k you're giving up!

While I was reading your 'ask,' I was thinking... too much info, someone at the company is going to see this. I hope this isn't the case and I am sure you will find another position.