mattisdada

Uh, in both cases "not the user", your friend using any other system unless he decided to back it up would have been locked out anyway unless he was using a localised system like POP3... Most systems allow admins to block/prevent data exports one way or another. He could have copied and pasted the slack history if he wanted a copy as easily as he could have backed up gmail / irc / etc....

I think your argument is somewhat null....

Looks good so far! Have a look at unity for inspiration for gui, I've seen plenty of non programers use it very effectively because of how user friendly it is