Looking in our GitHub backlog, we have a good number of issues open related to this issue.
- Notifications: page slow to load and results in time-out when many undeleted notifications #2892
- Notifications: send only one notification for each "batch" request access #2891
- Revisit notifications #1336
- Notifications: Customer use case may need subscription model for notifications. #868
Having 50,000 unread messages tells me that the way notifications function in the system currently is not a usable or suitable solution for system/root admins that get an overwhelming number.
Michel, I suggest that you add your use case and any other feedback you have to which ever of those issues best suits your needs. Then hopefully we can review this feature and improve it in an upcoming release.
User Interface Designer + Developer
Institute for Quantitative Social Science
1737 Cambridge Street, Rm K333
Cambridge, MA 02138617-496-2450www.iq.harvard.edu