Why doesn't everyone use mouseless web browsing?

https://addons.mozilla.org/extensions/moreinfo.php?id=879&application=firefox

Quick Description

Mouseless Browsing (MLB) means id-based browsing. Major goal of this extension is to enable browsing only by using the numpad keys.

HOW DOES IT WORK...

* Mouseless browsing bases on marking all links, form elements and frames with ids. If you do not like to see all of them, you can configure this in preferences dialog of MLB. You can trigger an action (e.g. following the link) by simply entering the id and depending on the configuration confirming it by pressing Enter. When the checkbox "Execute automatically..." is checked the action is automatically triggered after the specified delay for auto-execution.
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Almost as good as Lynx or Blynx
[URL: http://leb.net/blinux/blynx/ ]
which can read blogs without a lot of paraphenalia