Very bad? Have you read
this?
Skip your fantasies... it doesn't make a big sense for search engines.
Here is what I have to tell regarding this keyword-rich URIs myth:
So called "
User-friendly" URI (Uniform Resource Identifier, or URL - Uniform Resource Locator) consisting of a large keywords-rich phrase may not be considered as a user-friendly at all. By "
user-friendly" I could call the address which is easy to remember
for a user, or simple to recognize, or is quick to write by a hand. For example if you are in Internet bar and found some interesting site which you can't save on the disk, you must take a pen and then write it down manually. In that case miniBB provides short URIs which consist of digits only. For example: www.yourdomain.org/1_23_0.html means you are entering some topic's first page.
Most of SEO beginners
think keyword riched-URIs are
user-friendly, but this is a mistake. How could we call such URL as 'www.yourdomain.org/channel/health/mg19225755.100-patient-groups-special-swallowing-the-best-advice.html' or 'www.yourdomain.org/Web_Development/Internet_Marketing/Search_Engine_Optimization_SEO/Q_22960069.html' to be user-friendly? Take a pen and try to write these three examples down; you will see which one takes more time to write, and so more time to type, to remember or whatever.
Even in theory such poor program as Google or even a better search engine should not care about URIs' content; but it cares only about their length. Ideally URIs should only follow the limitation of about couple of hundred characters in length (it is recommended not to exceed 255 characters); but even this is under doubt because for a robot it shouldn't be a problem to keep long URIs.
Additionally, imagine that ALL sites on the planet have keyword-based URLs which is very possible in theory. How ALL of them could appear AT THE TOP of the search results? Of course some of them will come first, some of them will be listed later, and some of them will be not indexed at all. URIs shouldn't matter here because they are subject of the fake idea.
This is why we say no to it, and there is still unofficial releases, for example, take a look at
this thread or specially
my post under it.