Russian hackers on SW???

Back when Russia first invaded Ukraine I expressed my support for the Ukrainian people and I changed my profile picture to an image of the U.S. and Ukrainian flags. Recently someone commented on that image in my photos and called me a "nazi". I deleted the comment and forgot about it, then a few days ago the same person sent me a private message calling me a "gross nazi". After that I went ahead and blocked the person to avoid any further name calling but it left me wondering if the Russian government has put people on the site for the purpose of attacking people who sympathize with Ukraine.