I´m not surprised
I have always said it´s not a good idea to write so many details about sources in the forum. Even mentioning in which countries there are sources for SN is not good. In each country there are not many dealers for chemicals. Authorities and police read in this forum. It´s not a big effort for them to contact the few dealers in each country and forbid them to sell SN to private individuals.
Some members have even posted photos of the SN packs and addresses of sources on the forum. I also suspect that many members do not use a VPN or the Tor browser when ordering and on the forum. They post on the forum when they ordered from IC or other retailers and if and when the package is in customs. But even just by mentioning the initials XYZ of the dealer in country XXX, the authorities immediately know which dealer is XYZ. With the IP address and the other details it´s easy for the authorities to find the person and the dealer. Surprisingly, these people then get a visit from the police for a welfare check or end up in psych. ward.
Everything I said also applies to N.