Tom, thank you for bringing this to my attention.  This is not a good user experience, I agree, and have put this in the development queue for next week! 

Deborah, we are completely revamping memberships and this is included! 

Mark, 

This is coming, you will be able to select fields like {{first name}}, {{event.name}}, etc! 

In the queue to add this permission next week!

Agreed, great idea!