Customizing reports and excluding roles from reports

Hi,

This is a terrific module.. many thanks for creating it!

I am interested in excluding roles and users from reports - would this be easy to achieve or would this be a feature you'd consider adding? I think it might be worthwhile for others too.

Also generally I'd be interested in adding some reports specific to my site, for example regarding organic groups and notifications and people posting via mail2web.

Thanks,

Tobias