if you go with the cursor somewhere in a post, at the bottom it will show you the html pathing to there
for example, in the pic below I am inside a nested quote:
You can click those html elements and it will select them, then you can delete them. So you can delete the nested quotes, or delete an entire quote in a post with multiple quotes (or just one ig) more easily.
I am sure TC will like this if he has not figured it out yet. I kinda knew this since I made the site, but didn't think of posting it till now.