1. This would be hard to do as the number would be changing every time someone made a trade. I also don't think it's really necessary - Screenshots should be enough and if you get scammed, it's your fault. Should have looked at the trade before you accepted it.
2. Prices are constantly changing so xat would constantly need to update this, unless it connects to the fairtrade guide that bots or trade uses.
3. I don't really see a need for this.
4. We NEED this. Although, instead of adding all the powers like normal to the trade box, just put the everypower or allpower icon. (This is why I think the last suggestion is useless)
5. Yup yup. And on top of this it would be nice to have something to put several of the power at a time in the box. Say if you have 100 supporter, you don't want to be clicking the add button 100 times just to trade.
6. Again, your fault if you tell someone your password or someone guesses it. There's also protection for this when you login.
7. A reserve warning would be good too.
8. Only being allowed to trade twice every 30 minutes would be very limiting. Also, if you want to trade with more than one power that would be hard and might create a long list. I don't really like this one.