[Enigmail] Verify Public Key Export

[Carlos Williams]

On Wed, Nov 19, 2008 at 2:08 PM, Faramir <faramir.cl at gmail.com> wrote:
>  Enter Enigmail's key manager, select your key, right click on it, and
> use the "copy public keys to clipboard" option. Then, compose a new
> message. The address is pgp-public-keys at gingerbear.net
> Subject: ADD
>
>  And paste the public key to the body of the message.
>
>  You can also send a blank message to the same address, with the
> subject HELP to receive a message with the help about the usage of that
> server...

Is this option not available with more commonly used key servers? I
have never heard of this one and don't know how many people really use
"gingerbear.net".
The key servers I show listed in my 'OpenPGP Preferences' are:

subkeys.pgp.net, pool.sks-keyservers.net, pgp.mit.edu, ldap://certserver.pgp.com

Can I send my public to them via email somehow? I am not sure how this
works so sorry if this sounds dumb.