Okay, I see what you're trying to accomplish. I would say the same thing re: user crontabs -- probably requires manual review before deletion. But that's just an opinion after 5 years with CWP, 15 years with cPanel before that. Most of my users don't know what a crontab is so I have very few user-level cron jobs in place on my servers. Unless you are facing buggy software that is auto-duplicating cron jobs and you are trying to de-duplicate... Care to share a concrete example?