Just 2 errors that consistently happen on the forums that I'm gonna point out.
1. when you put a

in your post and then switch to Advanced edit or actually go back to edit a post, it adds a : after it for everytime the editor is opened.
if you go back to edit a few times it could look like

:::
2. I don't know if this is a problem outside of Google's Chrome, but everytime you use the advanced editor to post, it will add an extra space for every space you add during that edit. So if you add 1 space, the editor double spaces it for you and if you double space, the editor will quadruple space it for you causing you to go back and edit.