Version:           1.9.3 (using KDE 3.5.3, Kubuntu Package 4:3.5.3-0ubuntu0.2 dapper)
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.15-26-686

I am using about 60 filters to categorize my incoming emails. However, after time some of the filter becomes obsolete after time, for instance I unsubscribe form the mailing list and I don't remove the appropriate filter.
A feature which would count the number of activations of the filter after time would help a lot in controlling whether a filter is still active or inactive. Naturally different filters are activated differently - some are every, others one in a month. The statistics could count how many times was the filter activated during the last week, month, 3 months, year.