Love to have comprehensive documentation on Constraints
This is fairly obvious for some of the constraints and definitely a bit confusing for some of the other "constraints" for triggers and filters. I'm just so surprised there is no documentation covering all the constraints. You just need to figure it out by trial and error, discussion groups, chats, support cases, and the such. It seems like it would be so easy to have an explanation of each of these constraints found in the Marketo Docs.