seems like the operations should be enabled only by affirmative consent,
rather than requiring parties to veto them.
Interesting idea but not necessarily in the scope of OPES.
the point I was trying to make is that the services which OPES enable
should not be interposed between provider and audience without affirmative
consent by at least one of those parties - as opposed to a model in
which the services could be interposed by a third partry without either
of the endpoints' explicit consent as long as neither endpoint specifically