SpamCop Issues - Just Curious

To avoid being labeled as an outright complaint and/or gripe .......

Yes ..

I support SpamCop - purchase 50 mb at a time
I report EVERY spam regardless if trapped by SpamAssassin on my server
I will continue to support and report

Now, the question ..

What "good" is SpamCop doing to abate spam? The same spam just keeps
coming in day after day, week after week, advertising the same stuff,
eg., Viagra, Cialis, Stock Market Advisories, Hoodia .. all from what
appears to be from the same central sources and we continue reporting to
what seems like no avail.

Also appears that a great deal of this spam is channeled through
open-relays.

Looks to me like spam is just too large an entity to be addressed by
conventional methods ... Hmmm, perhaps a .44 Magnum would be a solution? :-D