I posted this already in the Slice's weapons use stats topic, but it had no confirmation of being accepted, I think it's better to suggest again.
A summary of the changes that you want I'd like to see Top Victims and Top killed by in the /stats or/and at the website stats. Ingame /stats only who has killed you the most and how many times and who you have killed the most and how many times. And on website, like top 10 of Top Victims and Top killed by.
The advantages of this change happening It would just be awesome to see who you have killed the most and who's your worst enemy.
The disadvantages of this change happening A bit late to make maybe as it would start showing the stats from the day it gets implemented and not before it. A little bit more spam at /stats
Any script snippets which provide the feature that you want It shouldn't be too hard to script.