you know, up to a certain point, this reminds me about how religion is "made". Somebody does or says something, probably minding his own business, then others take it up and make something almost completely different out of that. Like in Mad Max Road Warrior, Max ends up being a saint to the people from that refinery, but what really happened is, he drove a truck full of sand in the wrong direction.
Without wanting to bash anyone here, there are a lot of people here, me included, who feel that the Predator(s) shouldn't and can't be explained, and that the comics made way too much stuff up. Personally, and I've said this many times now, I like the first one the most because dramaturgically, it works best if the Predator is the villain and the unknown at the same time. Once you write a comic book about how the Elder in P2 got the flintlock, it takes the fun out of everything for me. In the very moment that I see that scene, I can let my imagination run wild; a comic (or almost any cheap to produce media) trying to explain how that **** happened can only disappoint me then (Pred and Jack Sparrow fighting side by side?? Seriously??). After all, it's a character created in an 80s movie, so in the movies it should stay (and I reserve the right to find all following movies retarded if they **** with the first one - generally speaking; midichlorins, anyone??). If you read Jim&John Thomas' script "Hunter", it doesn't say anything about "blooded/unblooded" and **** like that, and if one could really say that there was something like a "school of thought" concerning the Predators ... well, school's out for summer. Script doesn't explain where he came from or why he's doing it. Doesn't explain his mama's maiden name either. There *is* no *real* background story. The comics made most of that up. Nothing wrong with pleasing the crowd, if you consider them a valid source, it's your personal gain in fun; but I'm just not in that crowd.
Carry on. ;-)