svn help status
documents the '!' as:
'!' item is missing (removed by non-svn command) or incomplete
Which explains what happened: Some files were added to subversion and after that deleted. The 'ignored' setting only applies to files that were never added (or "unversioned files").
The 'incomplete' status is another possible reason for this status. In this case a previous update operation was canceled (or failed).
In both cases you can resolve this problem by simply running 'svn update' (again).