Precarious and the other kindly soulls here have tried to help you. Precarious says, rightly, that he is not picking on you; I am. First, you fail to care for your mantis properly, despite help, notably Doug's, from this forum. Secondly, when it is crippled and no longer "cute", you want neither to care for it, and it certainly seems salvageable, nor kill it. Instead, you want to put it out in the wild where it will be eaten, if it is lucky, or starve to death, if it is not, just so that you can pretend that you are being humane. You don't care if it dies, as it certainly will; you just don't want to see it happen.And then you abandoned the thread, just like you are about to abandon the mantis, rather than face your responsibility
What angered me most, though, was your saying that Ismart's post was "full of hate". First, son, you don't merit hatred, a little pity, perhaps, maybe a small dose of contempt, but not hatred; that's for grown ups.. Secondly, Ismart has been giving cheerful, friendly, expert advice on this forum for years and is always calm and understanding when folks like me are blowing their stacks. It's a bit late for an abject apology, but it wouldn't do any harm.
Precarious says that he would probably not sell you mantids. I certainly wouldn't, and I trust that anyone who has read this post will not, either. Collecting teaspoons is a pleasant hobby; your friends will be able to touch them without being "grossed out", and they amost never mismolt.