Dear Jerry (or whatever your name is)
But there are issues where all of that falls down.
1) You can't give you "very private" email to family and friends an NOT have them post the information in an address book somewhere. My youngest brother is on GMAIL and Google has said they scan or read every single one of those and I can't stop him from using it and I'm pretty sure my name and email is posted on a Google website.
2) There are other places where your real information exists online and you have almost no say-so in that. Your bank, your mortgage, and even your County puts all that information somewhere. The nasty one is your County. If you own a home (especially in California), the county treats your information regarding your property as "public information" (by law) and they actually post that information. How do you get advertisements from realtors or others even in the mail? Go search on your name and one of the first things that pops up is your address. It's usually a website that grabbed all of the public information from the government and has posted it on some real estate site. Try it.
3) I had a credit card hacking. As "protected" as I am, you cannot deal with a financial institution who hires some young people who have figured a way to mess around with your account on the financial institution's computers and have bought a few thousand dollars worth of computer equipment which gets delivered to your door and then taken from your front porch by one of their friends. Luckily, I am home most days or there is someone here, a cleaning group, etc. They bring in the box and accept delivery. Meanwhile, your financial institution cancels you card and gives you a new number which is hacked immediately, and the bad guys keep changing your account information. So, I'm looking at a stack of 5 credit cards. They even locked me out of my account so I couldn't even log in. They told me that "I" changed my phone number two days earlier and I asked how. They said: web. And I said that Ive been locked out for a couple of weeks right? They said yes. Then how did I change my telephone number? They couldn't answer so I wound up cancelling that card and all accounts completely. Bottom line: If there is an institution out there that has your REAL information, you are probably exposed no matter what you do.
4) I have POBOX.COM and that is like what you mentioned. The thing to be careful is if you start using the mail forwarder address, its difficult to stop using it.
5) And lastly, if you go to ANY website these days that has tracking ads, you're information is already exposed. IP address, computer name, contact list.
While your suggestions sound great, a lot of people just won't bother. Too much work. The issue with, for example, your ISP is that, well, did you ever give them your real information? Name, address, real telephone number? Credit card information to pay your ISP bills? The ISP can make a lot of money if they can throw some of this information into the data that has your web browsing history. Something websites don't necessarily have access to.