In addition to adblocking, some people use it for family censoring like blocking porn and gore on the domain level. It’s a more effective means as it would mean that your kid can’t go to ph on the family computer as well as their iPad.

You can block individual domains if you wish but there are also a lot of lists out there that are generated and maintained by the community to include new sites as they arise.

I like it for my iPhone for playing free games like solitaire and the like. A lot of these have intrusive ads but the PiHole effectively blocks the ads and I don’t have to have any third party apps running on my phone.

Additionally, I set up a VPN on my Raspberry Pi so I can take this adblocking on the go too.

You can also set up the PiHole to keep a log history which some people may want or you can use it to never keep the history for privacy reasons. I suppose this is another use case in ensuring your DNS server at home doesn’t keep a history of websites you visit from any device on the network.

Add dolphins to the list too. Not only killing for fun but also raping and getting high off other species.

Just need to make sure it’s not doing some phone home stuff after the fact, or cut it from ever reaching the Internet at all. I wouldn’t put it past any big corporation to be pulling that with the guise of the app being local and double dipping by selling data at a later date.

Linus Tech Tips did a good job exposing Anker for doing this with security cameras that were supposed to be local only but were found to be uploading pictures to their servers.