Currently there are a lot of things that damage your avatar via colliding with things and it triggers DAMAGE_TYPE_IMPACT
We are forced to use llAdjustDamage to negate this to do things like dodge rolls without dying, but it can be unreliable and also just takes up uneccessary resources to have every avatar in a sim doing it constantly.
Please allow for a land / estate setting, or a region debug setting to just disable DAMAGE_TYPE_IMPACT entirely so that avatars don't take impact damage at all, thus freeing us from needing to use work arounds.