Introduction
Importance of the latter :
One of the primary implications of a well-organized / good website, is to keep your visitors in the website. A website is definitely created for a purpose, unless intended for personal use, which is the minority. For example, a portfolio website would want to be visited and its content viewed. For companies and internet businesses, your website certainly aims to provide product information, to make sales, or somewhat similar. However, most individuals undoubtly prefer visually captivating designs, so on and so forth. It is undeniable that this causes no harm, but one must put himself/herself in other peoples shoes, as to understand how a visitor to the website might think, do and react.
1 ) Navigation
As I said, a web designer has to learn how to think the way your visitors think.
Situation A : Website with good navigation ( 2-3 hyperlinks to target page ), well planned in terms of placement, and design.
Situation B : Website with poor navigation ( takes forever for the visitor to reach his/her target page ), hard-to-read navigation fonts and poor placement of the navigation...