it's a sting to close him down and bring disrepute to those who do like him

Possibly even just the disrepute part. It's like the Steele Dossier. "Russia Russia Russia" and election interference is already a talking point the left are obsessed with, and even Disney claimed that Russian trolls were involved in the anti-Disney and "Fandom Menace" crowds. This is lawfare to brand alt-right influencers as Russian trolls in news headlines. It won't go anywhere in court, but there won't be any "vindication" played in the news, and normies will just remember that these people were linked to Russia.