To compensate traders for the inconvenience of being ADL’d, they will most times (in the case of liquidations) receive a better price than if they closed it on the open market themselves. Example: A long trade get's liquidated at ETH $100 but had collateral to cover till ETH $98. If this trade causes shorts to get ADL'd the shorts that were forced closed would close at $98 instead of the fair $100 profiting an additional 2%. There is a potential trading strategy, where you could have very leveraged, balancing longs and shorts open hoping one side gets ADL'd at a much better price than market. If a 50x gets ADL'd at a 2% premium, that would be around a ~ 100% profit.