No One Expects the Spammish Erudition

The last time I raised a puzzle about spamming strategies, a reader solved it in the comments box. So here’s another: What’s up with bogus sender names like the following?

Aristocracy O. Spengler
Pique I. Prorating
Acanthus E. Dragooning
Pricy B. Hijacker
Corpulence P. Ecology

Naturally, spammers can’t give their real names. But why pick such bizarre fake ones? Do some people’s spam filters filter out normal names? Is some kind of random word generator being used? (If so, why not just use random letter sequences?) Does curiosity induce recipients to open more emails with unusual sender names?