I've seen this. This is why I put down my Alien reference (pretty far back in the thread) where some prefer (and this is more of the original style of play) to simply have the horrific creature or monster (like in the movie alien) that is going to kill and hunt...no real reason known at times...but it WILL kill you.
Modern preferences for many is to see monsters as sympathetic beings that may not simply be monsters or horrors of the night, but humans of a different form. This changes the dynamic of the game. No longer do you have the horror of something that is indescribable and unrelatable, but you can have the moral dilemmas so many touch upon in this thread.
(interestingly enough, Gygax warned directly against playing demi-humans in this way, specifying that their very essence was different. They were not simply humans that look different, but their very core was different and foreign to humans...if I recall correctly. By playing demi-humans simply as humans that look different they decreased the variables of the game and made simply humans and more humans).
This idea of his, was hard to maintain from the beginning. The reason he stated such was because you already had those who were playing other races as simply humans with different faces. I guess you could call it our human nature to portray our characters as...human...even if they are an elf, or a dwarf, or a hobbit (err...I mean...halfling).
As time progressed, the way of playing races and humans with different faces has gained momentum and popularity. You need not look any further than TSR novels to see elves and dwarves portrayed basically as humans would be (because, in the end, we relate MORE to how humans are than some foreign alien creature that thinks, acts, and behaves far differently than we would).
It's all a preference on the way you choose to play. Unfortunately, sometimes both sides cannot see why the other side prefers to play the way they do. Unfortunately, at times there is no attempt to understand or allow the other type of playstyle, though both styles are still in play today.