I think prison time is the minimum one should expect from this behavior. That's what astounds me about this story.
Ok, let's assume you're a sociopath or at least a bully and you believe this action is justified or appropriate in response to some offense. You're already well outside of normal behavior, but let's take that as as given.
We're still talking about six or more wealthy, middle-aged people with astoundingly good jobs (in the grand scheme of things) being willing to risk their livelihood, their reputation, their wealth and their freedom over "someone online said something bad about the company I work for"? Even if what the couple published in their newsletter was invalid (and there's no suggestion that it is), we're talking about throwing your life - and that of your immediate family - away to "punish" an Internet troll.
This wasn't just some rash decision, this was methodically planned and executed over several weeks or months. They bought plane tickets. Practice for crimes in the company parking lot. Set up fake social media accounts. Got pre-paid credit cards. Imagine sleeping on this decision 90 times over and still thinking it's a good idea?
And the icing on the cake is how could they remotely think they would be able to get away with this? Multiple _death threats_ over weeks or months over "don't say bad things about ebay" and they thought the police might _not_ take a good hard look inside the company?
How did they think this would play out?
This is so crazy. It's cult-like behavior.