Anyway, do you know what I do when there are discussions online about my employer? 
  I stay the fuck out of it.

This is an excellent policy. Employee participation (unless they're CEO/Founder, CTO or some combination thereof that can speak with authority) will almost invariably lead to problems. It's good that some employees feel "passionate" and "enthusiastic" about their company/product, but if that's left unchecked and they refuse to remain objective, it will not prevent the thread from going up in a passionate and enthusiastic fire ball.

Same applies to social media.