Because the function isn't that great....just a faded bar on the side, not so good
I'm not sure why you can't see that the font is different and the quote is indented? This is standard writing procedure.
Quoting from another post.
A suggestion for easier to understand posting.
This function is designed specifically for discussion forums when quoting another poster.
The purpose is to provide a visual shortcut to help readers differentiate between what is being quoted from a different member’s previous post - vs - what is being stated by the current poster.
Simply highlight the text and click the quote button ("). If need to undo it, simply re-click the quote button (") again.