Monitoring subscribers on the list

Does anyone know if the number of subscribers on the list can be monitored?

I have a limited degree of monitoring, for the EUCLID project, through 
the RSS feed and Web scraping, but I'm struggling to measure:
1) what fraction of subscribers the vocal minority of posters are;
2) how unsubscriptions correlate with the length of current threads.

Barry

Received on Tuesday, 18 June 2013 13:43:46 UTC