A option to "delete" crashes from your account. In some cases i know it crashed because i was just playing badly with it or something. That way i can keep the "legit" ones. Ofcourse you can keep the files, but if i overwrite sourcemod with a new version on the fly it will certainly crash
(thats the lazy method i know)
In case you happen to have spare time and go through the cores just to see whats bad, would save you time to not look at the bad ones.
Or perhaps if you know the cause, add a comment to say what caused it so that if someone else has the same it shows. In any case, only when you have spare time since these things don't fall in the "must have" corner.