You can discuss the statistics here.
How can I set my real name, e-mail address, and homepage?
Player profile options can be configured by saying the appropriate HLX_SET command while you are playing on a participating game server. To say commands, push your chat key and type the command text.
Syntax: say /hlx_set option value.
Acceptable "options" are:
Sets your Real Name as shown in your profile.
Example: /hlx_set realname Joe Bloggs
Sets your E-mail Address as shown in your profile.
Example: /hlx_set email firstname.lastname@example.org
Sets your Home Page as shown in your profile.
Example: /hlx_set homepage http://www.geocities.com/joe/
Note These are not standard Half-Life console commands. If you type them in the console, Half-Life will give you an error.
For a full list of supported ingame commands, type the word help into ingame chat.