If you prioritise "sign up" over "login" on your landing page to the point that existing users have to search for the button, you are holding your existing users in contempt. And you're an arsehole to boot.
@Daojoan I think the UX design behind this is that users never log out or delete their cookies anyway, so they never have to log in again.

@oliverboehme @Daojoan Sorry, too many such websites I use log me out after some set period of time. As mentioned elsethread, Strava is one of them. Maybe the limit on their main website is 3 weeks or a month, but their "community hub" does it after 3-4 days. No, this is not because I deleted my cookies or closed my browser down (same thing), because I didn't.

Strava is a site I use a lot, so every little UX problem there pisses me off. But Flickr is also becoming a PITA.