After recently purchasing an ArcGIS Online subscription and inheriting a folder structures from an existing free account (now the AGOL admin account), i started to reorganise folders. I managed to delete my most important folder with my live webmaps in it - i was sure that i had not done this on purpose, but it all happened so fast that there was a doubt in my mind about what i had done.
An hour later i watched my colleague do the exact same thing on another key folder of content. He clearly intended to delete a folder that was not needed but the application then deleted a different important folder.
I will be submitting this as a bug - as we have now had to recreate all the webmaps again. I won't be deleting any folders until i can trust that the platform will not delete the wrong one.
And no, i can't reproduce this as i don't want to delete any more incorrect folders.
This occurred in the latest Chrome
