^ That screen shot looks like the text-entry box might not be wrapping the icons correctly.
The Drafts icon should be between the paired circle-arrows and the gear. On a platform with a pointer (Mac, or iOS with a trackpad, maybe), hovering over the icon will present a tooltip that says "Drafts".
The gear alignment below the 1st icon (Remove Formatting) suggests that the left side isn't hiding anything. The right side I'm less sure about. The Drafts icon might be to the right of the circled-arrows. If you tap there, does it bring up the popup menu for choosing Save or Delete Draft?
Or the problem may be a side effect of one's chosen layout preference: Fluid vs. Fluid HD. That choice should be at the bottom left corner of the page showing the thread.
One could also try scaling up/down (the small-A large-A tool) in iOS Safari, to see if it affects the text-entry toolbar.