So, let's see the other side, i guess:
"We have nearly 1500 blocked sites in Portugal, where ~80% are piracy sites, 19ish% are gambling sites, and Uber (I know, right?). The full list is available at our site https://sitesbloqueados.pt/ and we are able to compile this list with info gathered by our fellow users, automatically."
from
https://www.reddit.com/r/IAmA/comments/7swz4r/iama_developer...
(IE the developer themselves)
Yeah, a tool that's used for avoiding blocks on piracy and gambling, i'm shocked to find it was taken down!
Regardless of whether you agree, i think it's not uncommon or non-standard, and probably not (unlike some here seem to think) related to chinese censorship or other fun conspiracy theories.