Just me, or is Steemit editor in constant flux? Have any favorite resources?

Every time I compose a post (not often, about once a week), the Steemit editor seems different.

Sometimes default view is WYSIWYG, sometimes it's markdown. Sometimes there's option to toggle, sometimes there's not.

Sometimes there's a preview below editor, sometimes there's not.

Usually when I'm confused about an interface, the problem is me (user error, guilty, etc ;D). If anybody has any favorite resources about the Steemit editor, I'm all ears (and I have the markdown one already).

Update: Looks like they're working on overhauling the editor. Excited.