Maybe it should turn out that some of Scourge's victims were actually Skrulls, who ended up getting killed off because they didn't take into account someone would be offing super-villains. The Vamp, the Melter, Basilisk and several others could have been Skrulls. Of course, we would need a writer to use the surviving villains in interesting ways so people would like them again. I always thought, and still think, that Brubaker could do wonders with the Vamp, making her a big espionage-style character working for guys like Hydra, AIM, and whatnot.