In October 2009, Denisova was ranked 15th in the top 100 of "most influential women in Ukraine" compiled by experts for the Ukrainian magazine Focus (six places lower than non-minister and fellow Batkivshchyna member Natalia Korolevska).

[20] In the 2014 Ukrainian parliamentary election, Denisova was re-elected into the Verkhovna Rada, placed 15th on the electoral list of People's Front.

[24][4] In February 2019, following the Kerch Strait incident in which Russia and Ukraine's tensions had dramatically increased and the Federal Security Service had taken into custody a number of Ukrainian troops, Denisova was able to make contact with Tatyana Moskalkova, her Russian counterpart, via an impromptu meeting, and discuss the status of wounded Ukrainian prisoners of war.

[26] During the Russian invasion she was described as becoming "one of the leading voices of Ukraine’s suffering and outrage, appearing frequently in news coverage and producing a copious stream of social media posts"[24] She set up a hotline for citizens to report human rights violations and requests for help.

According to New York Times, "The vast majority [of calls], more than 15,000 in the first six weeks of war, were for missing people, but requests also come in for humanitarian aid and safe corridors out of besieged cities...

As such, it has become an invaluable first warning system for the gross human rights abuses occurring in the cities under assault, and in the towns and villages occupied by Russian troops.

[28] An open letter from 140 activists, media professionals and lawyers criticized the rhetoric of her reports about sexual crimes by Russian forces just before her dismissal.

[29][32][33][34] In June, Ukrainska Pravda published a report alleging that journalists and the Ukrainian Prosecutor’s Office had only been able to verify some of the rapes Denisova had spoken about publicly.