Valentyn is a public figure and ataman of the Polissia Cossacks of St. Andrew the First-Called. He is the founder of several organizations and an activist in the religious and cultural life of his region. In addition, Valentyn founded a parish in Zhytomyr region and assembled a collection of antiquities in his private museum, which supports local traditions and culture of the Cossacks. Valentyn is actively involved in volunteering, helping the soldiers, organizing collections and deliveries of necessary items.