Channel blacklisting (client side only)

I am currently trying to understand blacklisting of channels on client side. I recently noticed this option exists under PVR/Client-specific-settings and was wondering if it only affects the client’s local channel list or if it in fact triggers filtering of the backend’s channel list.

I would be very much in favor of having a local/client side option for filtering rather than on the backend so my kids would have a restricted channel list while the parent’s client would still have the full channellist of the vdr backend.

Unfortunately I did not find much reference to this feature and was hoping FernetMenta could briefly comment on it.