OK, I know this sounds weird. Here's the deal...
I have on two occasions forgotten to renew an email address that subsequently was used by associates to send me email. That is, I lost good emails.
Well, maybe I'm using this service a little differently than originally envisioned. Not just for visiting porn sites.
Anyway, I think it would be a good additional feature for spamgourmet, instead of always deleting emails, to be able to send them on anyway - with one change: a flag in the subject line, something like "SpamgourmetDetectedSpam". Then I could create a folder and have my email client shunt all those to that folder. This way the spam is still kept out of my inbox, which is the main thing I want spamgourmet to do, but if I really need to I can go through that folder and find the email I want.
I've had 7700 emails forwarded (mostly from email lists) and had 63 eaten, of which I know two are good emails.