How to get rid of Atom's Welcome screen

You have two solutions. I think the second achieves the best when you say "to get rid of":

1. By unchecking the option Show On Startup in the configuration of the Welcome plugin (Settings » Packages » welcome), Atom doesn't show the Welcome screen at startup (or when opening a new Atom window), but still loads the plugin:

2. By disabling the Welcome plugin (Settings » Packages » welcome), Atom doesn't load it (which saves memory) and so doesn't show the Welcome screen (under any circumstance):

On OS X, you go to menu Atom → Preferences → Packages and then you have to either find Welcome in the Core Packages or use the filter. You can't get there by going directly to packages in the top nav. Crazy.