How can I login to this site without posting a stupid question?

you missed the obvious "sign in" link in the top right? a window will pop up asking for your credentials.
 
Solution
In the home page? Sorry, I'm new and I don't want to sign in with twitter or facebook, as I don't have any of those social media accounts. Is it in the home page?
 

If you sign in w/ twitter or facebook,
we will disown you.