Reportedly Tiki automatically saves backups (not full saves) of your edits in the browser when in editing mode on a page, but it doesn't tell the user at all. Or at least, I've never seen it.
It can be very reassuring (and thus good UX) to subtly let the user know that their work-in-progress edits are safe against a browser crash, a machine/power outage, etc., between clicks on the "Save" button. It's a matter of showing a little gray line of text somewhere that indicates "Autosaved." after a while without typing, while in editing mode.
As seen here in WordPress: https://youtu.be/2CCXRmWiADo?t=39
(...not to mention Google Documents, of course)
I still have this oldschool reflex of writing _everything_ in my local text editor (which has autosave every minute) before pasting into Tiki. Even if in theory I've been told Tiki autosaves emergency backups of edits, I don't have a visual feedback indication of that, so my brain does not "trust" the app. It's psychological sure, but certainly I am not the only kind of user whose brain feels like that.