Re: Several issues
BuddyPress v1.1–shipping shortly!–has an entirely new avatar cropper. It should solve the issues you are currently having with 1.0.3.
Regarding your 3rd question, the “Delete Account” feature works fine in all versions of BP. I assume you are logging into your BP install as the Site Admin. If so, that is why you do not see this feature.
If the Site Admin where allowed to delete their account–and actually did so–it would be very problematic. So, BP checks to see if the current viewing users is the Site Admin, and if it is, it does not render the “Delete Account” submenu under “Settings”.
