When you flag a script as spam/malware on userscripts.org, you place it on a list for admin review; it will be removed if malicious. If you install this script, flagging still does that, but it also removes the script from your list. I would suggest flagging only those scripts which are really malicious; 'scrap' scripts are not deemed malicious. Use another filter to rid yourself of those.

This is INCOMPATIBLE with my Show Flag by Scripts You Flagged script, which, rather than trashing a flagged script, just displays a flag by it to remind you you flagged it already.