The full text is too long for HN but it can be found here:

https://www.reddit.com/r/cscareerquestions/comments/a05t4o/ethical_dilemma_should_i_steal_this_customer_for/

Tl;dr - Startup that relies on my partner and I has been leading us on for a year and barely paying us. The startup is just us and the CEO. We want to desert the startup and take their biggest customer for our own gain. We aren't sure if it's a great idea or a terrible one.