You don't know that there's no good reason to do what I do. I use many different tools. Try ed sometime, it might improve your productivity. Professional? I deliver and get paid.
What does it matter if I'm "right" about using a fundamental Unix command to enter text once in a while? What do you think I'm arguing, that cat is the best text editor and everything else sucks? Some guy said I'm not a professional even before I had a chance to give an example, which is rude and ignorant.
>You don't know that there's no good reason to do what I do.
Exactly. Show us.