I use Beans as theme for a website which uses the bbPress plugin for forums, extended with a recent addition 'post first' (which forces users to post to a forum before they can see the posts from other users). It turns out that with Beans it is not possible to write text in the body field for new posts. Typing text in the subject field is possible. And if first 'bold' or 'italics' is selected, then typing in the body field becomes possible.
This problem does not occur when e.g. TwentySeventeen is used as theme. So this hints to a little bug in Beans.
I hope this information helps to further improve Beans.