I don't think Nesh is that free and easy. I'm sure he, like the rest of us, fill in bogus information in all those information requests you need to register with forums and whatever services where they don't actually need your details for delivery or similar. I for one have never entered a true security-question answer in my life. Maybe not in Nesh's case - you'd have to ask him. Lots of people aren't as guarded as they should be, which is how phishing etc. work. But in cases where you want a service and it's from a 'trusted' company, we part with out information on faith, without ever researching their security, just because we trust they know what they are doing. And by trusted, I'd say any company that is either a big name or looks kosher in their website. I've bought from complete unknown internet companies before but not if their website looks tacky. And if it's only a matter of a small saving having done a price comparison, I'll often stick with a company I've used before.
What about my questions to you though? You haven't said how you evaluate which companies get your true personal info. Did you actually know what Amazon's and Epsilon's security was like before registering with them (assuming you have - you may avoid all personal info sites like some people do, which would explain that one!), or are you like the rest of us, quite frankly naive to what's going on behind the scenes and getting a shock when a big, powerful multinational, or even a small, trusted company, gets hacked?
Based on what you said above, not too different than you do. Just because I claimed that it was imprudent to give up your personal details without any regard to consequences doesn't mean I do a full risk analysis every time I fill out a web form! Don't forget, I got nailed by the PSN hack AND the SOE one. For the record, I was only clarifying the statement by LulzSec, not endorsing it.
I will now be more likely to fill in falsified information when correct information is not required for operation of the service/product than I was before, and I have always only filled in the required information (leaving the other fields blank). I have also attempted to keep my various online profiles seperate, not linking between Facebook, Twitter, forums, online gaming accounts, etc.