That's understandable. I'm not saying you shouldn't be upset and even play out revenge fantasies in your head, but focus that anger on making your stuff better instead of fighting a war of dirty tricks to the bottom; we've already got way too much of that in the world already.
No, my first thought was these guys don't have any creative talent and I wish I could tell their CEO that I'm not buying his load of bullshit.
Your comments resonate with me though. After calming down a bit I went back to writing code. I keep telling myself I can only worry about the things I can control. And my product is the only thing I can control and work on improving.