Illegal strikes: head-butts, back-of-head, throat, spine, eye-poke, groin → warning → point deduction → DQ; Slamming opponent from clinch: DQ; Hitting on the break: warning → point deduction
Why people argue about this
People often assume that head-butts are only penalized with a disqualification (DQ), forgetting that ONE Championship also deducts points for such illegal strikes. They mistakenly believe these infractions are treated as equally severe regardless of whether it results in a loss or just a deduction.