I've seen something like this request mentioned somewhere on these forums, but I cannot find it anymore.

It's about limiting the timeperiod for the 'Best 5 days' report, e.g. to the last three or six months. It doesn't have to be a daily rolling update but once a month would be nice. The reason for this request is that every now and then an active project for whatever reason is unable to provide statistics that reflects the work recently done for a prolonged period of time. Then one day it does (today Einstein as the validator started up again, soon LHC as the project is actively administered again) and hey presto we have a virtually permanent resident in the top 5 (again).
It's the word 'permanent' I'd like to see gone.

You can reset your history manually:
http://www.boincstats.com/bam/best5days.php

Thanks! Knew it was in there somewhere, just couldn't figure out where. Was this function a recent addition or have I managed to miss it until now?

Suggestion: After I click Clear, and it says "The selected histories are scheduled for clearing!", shouldn't the checkboxes appear checked?