I've been pondering this myself recently, and decided to explore setting up my DNS-level adblocking in Bind using RPZ instead of my hosts file. It was quite ea

I've been pondering this myself recently, and decided to explore setting up my DNS-level adblocking in Bind using RPZ instead of my hosts file. It was quite easy, and I now even use nsupdate to block new ad domains that show up so that I don't have to restart my DNS server to add new names to block. I pondered making my server publicly available but had concerns about bandwidth, and other potential legal shenanigans. That said I couldn't put my finger on what exactly I'd get in trouble for if I made it public, so perhaps it's just FUD?