If the company doesn’t want you editing pages, they should be locking them down. If the pages are left open I feel that it is safe to assume the right to edit. And I’d argue that until my boss absolutely hated me.
Yes, but not accidentally. You should press an [Edit] button which would take you to another URL to edit the page.
The problem occurs when someone accidentally drags things around, or has the wrong window open when typing in text and you end up with "ls" and "exit" scattered randomly throughout the doc.
.. okay it’s mostly a misfeature because it’s the exact same input gesture as selecting text, but you have to remember that there is text selected / ensure that no text has been inadvertently selected.
Another case where making the user remember things can cause a problem is hybrid cars, where the driver needs to know the state of the hybrid battery because the responsiveness of the brakes and acceleration change depending on it.
the same thing would happen in word/google docs/etc