Reincarnation

Reincarnation... why make a big fuss about it?

I'm a member of seven forums. I noticed that in every forum, there is a thread about reincarnation. Some believe it and some don't. There is always a debate about this and I really can't understand why.

I mean, whether or not reincarnation is true, who would know? They say when you are reincarnated you'll be in a new-born baby's body and would not remember anything about your past life. Some even say that a person might come back as an animal or insect.

And why is it very important for some people? To be as kind as possible in their current life so that they will come back to another person's body and not a cockroach, perhaps? Pretty funny to me. Doing good to others that is coming from the heart is better than doing it with an intention that would benefit one's self.