Problem When you have multiple subflows that trigger Info-message-activities, these information messages pop-up in the user's browser separately. This looks clumsy.
Solution: have an option to group these messages into one information message.
Though I agree it looks clumsy and it is annoying when you need to click on 4 messages. An option to aggregate would definitely help some use cases, but I think most of the times that this happens, it is due to a design that can/should be improved. When you can blindly aggregate user messages (can you combine info+warning?) it could also result in weird unreadable messaages.