I can bet you if you read the book yourself you won't find any instructions to be hypocritically unkind to fellow-sinners.
If I read it myself? :)
I have read the whole bible cover to cover many times. It's not that kind of a book, but I was making notes, comparing and actually studying it. Whereas most Christians I have encountered have only read a few inspirational passages recommended to them by their priest. Carefully chosen to avoid the tricky bits (most of it).
The whole "but do we want him to turn the world into toy town" is a poor argument. Remember God thought the garden of Eden was a good idea. He doesn't say 'I knew it wouldn't work' He says "it was ok until you spoilt it. Funny that he never saw that coming really.
More importantly the bible doesn't say god just passively allows bad things to happen, but that he does them himself and tells other people to do them.
I don't know how much you know about your bible. How about the bears? Elisha is offended by some kids calling him baldy so he asks god to sort them out and god sends bears to tear the kids to pieces. God apparently gets off on that kind of thing.
On a larger scale in the bible he orders his followers to invade neighbouring countries. He tells them not just to take their land, but to slaughter them all. Sometimes he says keep the youngest girls to rape. He tells them to kill all the babies though.
In Leviticus he lists people who should be killed for not following his rules, including all gay people. He approves of slavery too and mutilating the bodies of small children.
Have you read Job? God meets the devil by the road and they stop for a chat. God bets Satan that he can't make Job lose his faith no matter what he does to him. With God's permission, Satan abuses, tortures and kills Job's servants, wife and children.
Of course none of this was god really because he doesn't exist, but it is your religion. Your god of love.
It's also the basis of the other Abrahamic religions. Remember Abraham? He was god's favourite and he earned that place because when god said "take your son and kill him and I'll reward you" Abraham said "ok then". He was a true believer was Abraham. A role model for all believers.
The description of god in the bible looks so bad to modern Christians that they have taken to saying the Old Testament doesn't count. I've never heard a sensible reason for it not counting unless god had therapy before incarnating as Jesus. Some say it is simply untrue because it was altered/mistranslated and so on. The bits that support their position though are accurate. Just the bits that make them look like they are worshipping a bloodthirsty psychopath.
Believers say I should respect their beliefs when they carry a book which says that all kinds of atrocities are good. A book that if they actually followed it closely would have them in prison in any civilised country and on sexual offenders lists.
Now you admit that your god is the only true one. I'm glad to hear it as many Christians try to avoid saying that nowadays. I think it's more honest to say out loud "mine is the only one".
You say "I don't go round threads mocking people for believing it", but it does mean you don't take their beliefs seriously.
It means that you think that hundreds of millions of people sincerely believe in a god that doesn't exist. You are quite right, but that includes Christians too.