[Taragon]

Let me rephrase that a little bit, by giving an example:

When you categorize your files on your harddrive, you often place all of your files in a directory first. Or when you have a numerous amount of files in several subdirectories. This all to avoid mixture with other files already there.

Now, let's say you don't have any other files to worry about. Why put it in a subdir then?

This same goes for search engines crawling your website. They prefer to go to [minicode]http://mypage.com/forum-title/thread-title[/minicode] instead of [minicode]http://mypage.com/some-dir-name-which-will-only-be-used-once/forum-title/thread-title[/minicode].

I agree, I am perhaps overstating things as there are more important things to worry about like content. However, when seeing a starting website I do think it should be mentioned as it will be almost impossible to do in the future.