I won't be able to win if I argue with you :)
If I say: well if 6 people send me each a 10MB file then I'll be over quota
you will probably say: email is not for sending big files, you should use "blah"
I will counter that it's the most convenient way for off-network or off-company people to send me the files
But you will say this is abuse of email and if you were my sys admin, you would hurt me.
But surely you agree that there are sensible and less sensible ways to use a tool, in this case e-mail. You don't ask people to send you movies by e-mail because the tool just doesn't work that way: there are different, better tools you can use for that. SO it boils down to what is reasonable: 10MB attachments are close to the limit.
Then I will say technology is here to serve me not so I conform to it and if everything was used for its original purpose, there would never be technological progress
A car is also there to serve you but still you must conform to the way it works. You might build a joystick-controlled car for example, if you dislike steering wheels, but you'd never simply complain that a common car is forcing you to use the wheel, even though actually, it is. You just accept it because the tool is built in a certain way and you need to use it in a certain way to exploit and enjoy it. Most limits are not arbitrary; cars need a steering device and you *will* cope with that or build something new altogether. Technology has limits and best practices too: and it would be best to cope with that too, while we keep innovating, little by little. Remember IT in the 90's?
But you won't listen because your in power of the said technology it's your way or the highway.
I like to explain to my users why systems and procedures are the way they are. Surely they will understand, appreciate and cooperate... maybe even give insightful input... Guess what? They are not interested. So while "my way or the highway" is too rude to be used for real in a workplace, sometimes it does boil down to that. If your kid insists that he wants to drink poison, you will stop him somehow, won't you? And it becomes "your way or the highway".
Then I would forward everything to Gmail bypassing/compromising all the security that you set up b/c I'm just a user and I want my way...
That's tragically irresponsible. It should be ground for termination and be made impossible technically. Unfortunately it's not, where I work. Our CEO worries that people might steal our valuable data on a USB stick and wants us to monitor or block USB usage... When people can simply mail themselves our whole file server contents (ok it's going to take forever but you get the point).