They already blocked it once. As they normally block domain and IP, they ran into issue when owner of blocked domain set the A record to 127.0.0.1.

The same "hack" was used to block Google and other huge sites. Once they found out this "hole", they introduced a white list of resources which shouldn't be blocked.

These guys are really "smart" )

It a repo of "leaked" blacklist. Roskomnadzor don't publish it to public and share it only with ISPs.

That repository is obviously just a copy and is not (and in fact can't be) used by ISPs.