The same goes the other way around.
If @aggroed gets hacked again and turns HE off, we have a huge problem.
We won't rely on a single entity/database. We would definitely rely on a decentralized exchange. Something like this for example:
https://hive.blog/dhf/@borislavzlatanov/re-aggroed-qj8d7v#@blocktrades/qj8k4q