I'm already on 7.0.4 with the JB but the tweaks keep disappearing
Because they're not compatible with ios 7 yet.
Doesn't anyone get this yet?
You're installing stuff that hasn't been updated or tested to work with ios 7 that is why you and everyone else out there is having issue and bugs.
All you can do is wait or go stock.
Anything that uses mobile substrate stops working after reboot due to it not being updated to iOS 7. You need to reinstall mobile substrate after each reboot.
Keep installing those ios 7 tweaks, obviously you know everything