Kinda ironic that you actually give your opinion about a conversation after bashing on opinion based discussions.
C'mon, you can't actually tell the difference? Talk all you want whether own trading platform is needed or should service be used. But comparing pros and cons of different service vs another is not productive, as the real discussion should be about whether to do it in a first place or not. You are picking a color for a car you want to get bought, while your dad have already decided to build it him self.
This discussion has ended.
Your opinion isn't worth more than others. In fact, bossing people around without authority makes it worth less. Also, I don't know many dads who can build a car.
And as pointed by others, there is many ways to access the official information, as easy as it is to glance over non-official information. Eck, you might even learn something new.