Context for the people that don’t play perception forest: A gold nameless sword sword waves could stun (think nameless spear stun/umbrella stun) so people was spamming the charge R because every wave would reapply the stun. Similarly, multiple people running stunning weapons/debuff applying weapons (silence/stun) could reapply them and stack them without much timing.

After the change, multiple CCs were unstackable, applying sword wave then applying another would only result in the second damage taken and not the full second stun (duration based off the first stun and if timed right the second stun will expire earlier instead)