I couldn't find the link to reach the Privileges page. So my question is: is there no link/button that does that or I just couldn't find it?
The way I always find the privileges page is:
go to the Help Center (which is linked from the drop-down menu which is always at the top right of the screen on every page on the site)
scroll down to the "Privileges" section and click on "View a full list of privileges you can earn"
There you'll be able to see a list of all privileges, both those you've earned and those you haven't.