Do you think your end users want to use a chat platform where they know are being monitored by a small startup? It makes it a bad decision for businesses that handle any sensitive info, and if you are going for noncommercial use there's a myriad of options that don't send user data into the void.
as far as your actual question - it depends on what "data collected" you're referring to. Can any of the data identify the users, etc? If you provide an API that they need to plug into, or make it all SAAS then sure, it's at least physically feasible at this point.
But it almost sounds to me like you're asking people to manually send them data from some local installation - or you want to send them a demand notice for system data if they don't - or you want to prevent them from blocking some monitoring service. To me that does not sound realistic even if it was legally feasible.