When people post images, they often use markdown in the text field. Sync doesn't display this properly in the posts feed.
The navigation items in the toolbar really detract from the clean look of Sync. I suggested that they be made optional, since they are 100% redundant.
Tip: Holding down on the FAB (or Action Button if you use Bottom Bar navigation) will execute the first action in your More Actions list.
Settings shortcut: Account settings > Home instance