It takes me several steps to start playback of my favorite Shoutcast stations. It help if I could put those into the main menu somehow. With YouTube, simply having YouTube itself listed there would also help. I know the themes make adding things tough, but it'd be a lot fewer steps.
Yes, would be nice to see some kind of easier way to add main menu items. A while back I hacked Confluence to add a "Security" main menu item and sub-menu that lets me play live streams from my security cameras, but it wasn't easy to figure out and I have to keep coping/re-applying my changes whenever a new Kodi version comes out with updates to Confluence.