What device?
After further research, uninstalling/deleting files is safe - Samsung ICS devices do NOT mount their filesystems with the "discard" option.
Wiping is the primary method of damage - also Samsung has replaced most devices damaged by this bug (it's kind of inconsistent, but if you fry when doing a wipe on a stock unrooted device it's almost guaranteed they will cover it.)
Flashing ZIPs in recovery and nandroid restoring can't be done with stock unrooted devices, those are the main other danger cases.
I would have edited my post but because I am a new member I had a time restriction
I have an N7000 16gb
Thanks for the info