Complex sentence: The poem's publication gave Ważyk a tremendous amount of notoriety as a voice of dissent, and he was widely praised not only for his eloquent critiques of the communist regime, but also for his courage to make these views public.
Split into simpler sentences: The poem's publication gave Ważyk a tremendous amount of notoriety as a voice of dissent. He was praised not only for his eloquent critiques of the stalinist regime, but also for his courage to make his views public.