SSL "Object Identifier" question

[volswagn]

A few days ago I started filling out an SSL cert request from Hostgator's form. It asked for my personal address. I contacted live support and they said don't worry, my address won't appear on the SSL cert, they only use it for verifying my identity. So I filled it out...

Guess what? My cert now has my personal address on it.

It turns out there are two fields that every other cert I check out online do NOT have:

Here is an SSL for, say, Chase:

CN = chaseonline.chase.com
OU = Terms of use at www.verisign.com/rpa
OU = CIG
O = JPMorgan Chase
L = New York
ST = New York
C = US

Here is one from Yahoo mail:

CN = login.yahoo.com
OU = Yahoo
O = Yahoo! Inc.
L = Santa Clara
ST = California
C = US

And here are the fields that appear on mine (information changed obviously):

CN = www.mydomain.com
OU = Comodo InstantSSL
OU = My Main Company
O = Company for This Domain
Object Identifier (2 5 4 9) = My personal street address
L = My City
ST = My State
Object Identifier (2 5 4 17) = My Personal Zip Code
C = US

So they have two "extra" fields that have my personal information on them. Tech support has been absolutely positively ZERO help on this. They have either given me one or two word answers like "all SSLs have this information" or "if you want to change the address it will be another $25."

Nice, right?

My question is, does anyone know if these "Object Identifier" fields are necessary, and if so, why? I generate self-signed certificates for my machines (for personal use) every once in a while and I don't even know how to add these extra fields.