There's a frowsy destructive joy to the staging.
A few seconds of full-frontal nudity in a hyper-edgy movie like The Suicide Squad isn't anything truly revolutionary, but given American culture's hang-ups about nudity and the general sexlessness of most big-budget blockbusters, it's still noteworthy.
Before The Suicide Squad, the most prominent visible penises in superhero movies were Doctor Manhattan's, seen throughout Watchmen, and Deadpool's, seen when he is regrowing his bottom half in Deadpool 2.
Pulpy and outrageous, irreverent and ultraviolent, The Suicide Squad does so with a smile.
At that time, Gunn was in negotiations to direct the film, which was described as a relaunch rather than a direct sequel that would take the franchise in a new direction and feature a largely new cast.
Deliberate self-harm, without intent to die, is not usually inflicted while naked.