After their win at the Eurovision Song Contest 2021 he was falsely accused of drug use during the final. David and his bandmates have been anti-drug advocates since the beginning. David himself stated in his "Vogue Italia" interview, "we are not falling into the stereotype of the alcoholic and drugged rock star". He believes that creativity comes from a "healthy, trained and lucid" mind and it is contradicting trying to truly express "our own self by binding ourselves to something that instead makes us dependent, slaves", also referring to the 27 Club.