The problem is interests
Security software writers benefit from being unique, from being the ONLY guy who can discover that nasty. Therefore, malware discovery to them is an asset.
On the other hand, malware writers collaborate because of mutual interest. You have something I need, I have something you need, we're friends!
That's the whole issue. Try to work around that ... any solution (including "collective intelligence"/sharing mentioned in the article) _won't_ work because it's solely based upon ethics and goodwill. Unfortunately, these two don't put dinner on the table, even though they might give a temporary PR boost (on launch day, day one, and day two - then forgotten afterwards).