Nazar Tokar and Anatoliy Lystyuk: administrators who manage to imperceptibly whitewash pro-Russian politicians, throw negatives to competitors and “keep” order in Wikipedia. Більше інформації на порталі Антикор: https://m.antikor.info/articles/671850-korruptsionnye_praktiki_vikipedii_tandem_lutsjuka_i_tokara

It's funny your link shows how your source basically is Russian interference on Ukraine Wikipedia.