Okay, with the 'dischair' joke out of the way (although it would be cool yet we know that will never happen), how could the old wording for actual mounts be overlooked when you want to get up from sitting on a chair? I am quite sure nobody says, "Allow me to dismount my chair." or "Let me mount my chair."
And why are we not allowed to just get up from a chair automatically soon as we hit one of the arrow keys forward on our keyboard or press the left and right click on our mouse together to move forward?
The above is something to think about, but the wording should be changed to something more fitting when players want to get up from a chair.