Regarding 1-3: certain programs might depend on the existence or lack of existence of a directory or file with a certain owner. The ability to add/remove a root owned directory/file anywhere on the system is most certainly a vulnerability of sorts.
Regarding 4: ...
Regarding 1-3: certain programs might depend on the existence or lack of existence of a directory or file with a certain owner. The ability to add/remove a root owned directory/file anywhere on the system is most certainly a vulnerability of sorts.
Regarding 4: ...