Really appreciate the feedback.
It’s true that for now contacts added via a list will show as influenced contacts and revenue. This is the first step towards a cleaner way of associating contacts to campaigns. The issue that @mark-franken and @aericks2 is describing is on our roadmap. And, as Revenue Attribution gets built out further in Marketing Hub Enterprise, we plan on delivering even more robust multi-touch attribution that includes offline and custom interactions.
@kbjornaas We hear you 
This is a system limitation we’re working with at this time. While we work on performance & infrastructure improvements, I’m interested to know how you plan on using lists with campaigns. How often would your campaigns need more than 5 lists? What’s the use case? I’d love to pass any examples along to the team.