A journal has noted that participants in ScholarOne conversations are not sent email notifications when fellow participants post messages.
They have noted this means their editors and editorial board members are obliged to log into ScholarOne everyday and check active conversations. They consider this to be excessive and a time waste, considering new posts will not always be present.
The fact the conversation tool is inherently slow to load compounds of the time investment required from very busy academics.
I think it would be of great benefit for journals to have the option to set up notifications to conversation participants when conversation messages are posted and propose it should work like the initial notification of invitation to a conversation.