I'm pretty sure it'll be bcause Ross uses a shared computer offshore. Believe me, the last thing you want is to hav auto log in on ANYTHING!
I have heard (and seen) some horrific jokes played as someone has left email addresses in view or a computer logged in to some account or another.
In the office I used to work at I used to run upto peoples computers when they left them unlocked, and quickly google, GAY BUM SEX IMAGE, press enter and click on the first link and run away laughing my head off
we used to do that in college