> does 'keep delete' mean, that already mirrored files
> which are deleted on the server are NOT deleted on
> the local mirror? so, if -X0 is set, nothing (?)
> will be deleted on the local mirror? but e. g. a
> page named xy.html which used to be linked on a page
> on the server, will be kinda orphaned on my local
> mirror and only accessible directly  and not via any
> index files?
Yes!