Since the revelations this week I've decided to add all facebook domains and sub-domains to my blacklist. Unfortunately pi-hole doesn't support * in its wildcard feature, so instead of being able to just write facebook.* , fbcdn.* etc, to cover all kinds of facebook.com / facebook.fr / facebook.whatever domanins, I have to write them all in manually (there are quite a lot).
Please could you add this capability to the wildcard feature in blacklists? Would be a great help
Another option would be to use dnscrypt-proxy V2, and use the filtering options, you can read about it here. A discussion to install dnscrypt-proxy V2 can be found here.
The disadvantage of course is the use of 2 services, to achieve the desired result.