At this writing, Suicide Squad received poor reviews from Rotten Tomatoes critics. The film currently sits at 33% based on 72 reviews, with an average rating of 5.2/10, making it certified rotten.
Rotten Tomatoes' Critics Concensus reads:
Suicide Squad boasts a talented cast and a little more humor than previous DCEU efforts, but they aren't enough to save the disappointing end result from a muddled plot, thinly written characters, and choppy directing.
Some DC Comics faithful aren't pleased with the poor reviews Suicide Squad has been receiving and they are blaming Rotten Tomatoes, but does not review films itself.
The Change.org petition, made by a fan who says he lives in Egypt, argues Rotten Tomatoes should be shut down because its critics "always give The DC Extended Universe movies unjust Bad Reviews," and that this affects people's opinions, even if the films are "great." Get more scoop at HollywoodReporter.