I was talking to a friend about this and promised to look into it. Neither of us have submitted an EIP before so I wanted to go through the process and see if this was something that made sense.
While I support a free and open internet, there may be cases where someone would want to intentionally prevent unintended interactions with a known blacklisted entity, such as with OFAC sanctioned addresses.
In short, we would like to define a standard for preventing a list of addresses from interactions (to or from). The idea is that this would be an easily implementable pattern that would also be update-able by a third party who would manage the list. I suspect we would have “local” lists that were essentially user controlled, as well ad more global lists that could be managed by a single/shared entity.
We have some ideas for how this could be implemented, and are looking to get feedback from the community about the concept, as well as support moving forward if it does make sense as an EIP.