thanks for your reply and scrpits, I will test and get back with results.
we've given users the ability to create their own scheduled reports and also used the scripting capability for dynamic data gathering and email send. So when a schedule triggers, dynamic data is gathered from external API source and the report is sent after render via email. So, 100 users having 1-2 scheduled reports with their data sent on a daily basis would quickly pile up those numbers.
we've checked schedule history from time to time using the studio for debugging i.e. when a schedule fails to execute for some reason keeping error state. Being able to keep track of a certain # of instances for each schedule (i.e. last 5) via configuration would be helpful I suppose