From what I understand (based on what Fred said in the other thread), #5 is all about legal action. The disclosure clause is only triggered when (1a) you file a lawsuit against Eden OR (1b) Eden files a lawsuit against you (e.g. for defamation; e.g. if you declare on your blog that Eden sells used toys, that would be grounds for such a suit--while truth is a defense against defamation, you'd have to go to court to actually argue that and by that point, the disclosure clause would have already triggered). AND (2) disclosure of that information (to the court, it seems) must be necessary in order for Eden to defend itself or to litigate against you for defamation. The clause does not give Eden the right to disclose your information just because it deems you a "point farmer"; legal action is a necessary precondition for disclosure. And announcing your real name and address in the next Eden newsletter (for example) is not conceivably necessary for these purposes, so nothing like that should be a cause for worry.
If you don't plan on suing Eden or publicly stating anything that would give rise to a defamation suit (such as accusing the company of criminal action), the disclosure clause should never trigger. Even if this clause didn't exist, in the context of a lawsuit, Eden could probably ontain and disclose (to the court) all of your relevant personal information anyway.
As scary as this clause looks at first, it's actually pretty mundane and commonplace. While I can't tell you what's right for you, I'll just say that I agreed to it and am not particularly worried (despite being highly protective of my own privacy). When it comes down to it, I'm fairly certain that provisions in my Apple End User agreements are more dangerous than this disclosure clause. If you don't feel comfortable signing on, by all means, think it over more, contact an attorney for advice, or decline to agree to it. Whatever you decide to do, I hope this legalese-ridden explanation might help you make an informed decision that you feel comfortable with.
Disclaimer: this is not legal advice and should not be treated as such.