Please also provide a way to insert images with a customer width/height. I usually paste images from my website but can't be resized nor aligned properly unless I go into html which is a headache, and becomes worse when practically all html tags are not allowed.
We improved our editor, also added new features more detail here.
We use modified version of http://redactorjs.com/
base version upgraded from 6.4.1 -> 7.6.0
Also we implement bunch of fixes.
Fill free to report issues, we try fix or implement new features ASAP
I don't know if we are using the "new" editor right now or not, but whatever editor we are using presently does not preserve line breaks. Or maybe it's just a CSS problem and you need to put a margin-top value in there for the <p> tag for text generated by typing into the editor.
One way or another, we should be able to make paragraphs with spaces separating them...
Check line 863 in your .css for this page.
When I eliminate the "margin" expression out of that line's rules, comments and posts appear with clear spacing between paragraphs.
In my opinion, you should change the CSS so that paragraphs get a margin-top that spaces them down from the element above them. And hitting "Enter" should insert a single <br>.