Well I'm certainly glad someone brought this thread back, it was one of my personal favorites.
On Topic:
Well, Anti-Human posts. Hm. *cracks knuckles*
Let's start with Mr. xAyjAy.
i would say the world would be better without humans because humans destroy the planet. they make trash, let the nature shrink only to have a house, kill animals and dont know when to stop, destroy/kill themself and they can not live in peace (i say only one word: war).
I get the trash part, but it's just a waste byproduct, all animals make it. When they decompose, when they deposit feces, it's all waste or "Trash" as you so romantically put it.
And what's with this "for only a house" business? Orangutans rip branches off of trees to make little hovels for themselves, all animals shrink nature to make shelter, it's a necessity. And this issue of humans invading other animal's space is just another byproduct of our own overpopulation that simply cannot be handled until we achieve extraterrestrial status as a species. It's just out of our hands, and would happen with pretty much ANY being that grew to human-like intelligence.
"Kill animals and don't know when to stop" is a bit old-fashioned. Did the crazy monarchs want all those Passenger Pigeon feathers and Dodo... eh... whatevers? Yes, it was a luxury and nowadays, humans have become pretty good with the whole hunting thing, with regulated hunting seasons and harsh repercussions for not following out the laws of The Hunt.
War eh? Think humans are the only species who can't stand each other?
ahem.
but without humans animals had only their natural enemys and no one that can kill there entire race.
Humans ARE natural enemies, and WERE ONCE barely scraping by as a species! You think a human has any chance against a Cave Bear one-on-one? It was once humans began to craft tools to more effectively live in packs and exist in one spot and be able to destroy any threat that came at them did they start to dominate the food chain.
And yes, it has happened where an entire species of animal has gone extinct because of another (I'm not talking about invasive species). It's called Evolution. Species X gathers a LOT more grubs than Species Z, and causes Species Z to starve and die out due to its obsolete status. It's happened before humans, and it's probably happening in some remote corner of the world human's aren't even close to right now.
But the fact is, yes the Earth would be in better shape without humans on it.
Relative to what? Before humans? Let's go a little before humans, ah, the world is molten and the water is poisonous because of all the iron! Totally better without humans though! Wait, that beaver just cut down a tree, just like a human! It's harming nature! Get rid of the beavers!
And now that Chimpanzee is using tools to totally wipe out that termite mound! Get rid of the Chimps!
Earth changes. Sure, humans caused this change, but that just means that other species have to adapt. The Dinosaurs couldn't adapt to meet the necessities of that post-asteroid earth, but other species could! It's a natural process, and humans are just one of the factors pushing this certain change. If the polar bears can't adapt, sucks for them. They should have. A species that doesn't push itself towards perfection goes against nature, is therefore an abomination of creation and must be destroyed. It's the basic law of Life, to strive for perfection and to adapt. Again, humans are just another small tidbit in the timeframe.
-Chillz thinks humans are NOT all bad