Doing a CLEAN uninstall of XBMC within aTV2 Flash (Black) v1.1.1

I uninstalled XBMC add-on, wanted to remove the PROFILES I created and other settings.  Then I re-installed it and all the old stuff came back (including profiles).  How can I perform a CLEAN uninstall ?  Obviously, REMOVING the add-on via MAINTENANCE menu didn’t work.  I am assuming I will have to sFTP or ssh then delete some DATA folder for xbmc addon, is it true? if so, which folder? Will MAINTENANCE-> REMOVE ADD ON be fixed soon to do a clean uninstall ?