Interestingly, Wikipedia editors are aware that Wikipedia articles are used to find the current URL of sites that are forced to change URLs frequently due to legal or moral issues, and they face the same dilemma registrars and service providers face.[0] So although it seems somewhat more resilient than search engine companies to demands from copyright holders, it's not uncensored, something to keep in mind if you're infrastructurizing it for that purpose.
[0] https://en.wikipedia.org/wiki/Talk:8chan/Archive_2#Inclusion...