Is there any way that on future redesigns and tweaks that the text box members type into when writing a post or comment be the same width as the final column will appear once it is submitted?

I have a horrible time gauging how long my actual post appears to others. I know it is difficult to read long posts, but obviously read my own work faster. Without that visual gauge of length I often don't get the cue that I have gone too wordy and need to be more concise.

Quite obviously a silly and nitpicky request, but it is just an idea that might make the site more functional for users that obviously have spacial reasoning difficulties. LOL