It may be handy, but to whom?! To people who wish to become scammers? If you discover some vulnerability you can do two things, you can try to use it in your favor (dishonest) or you can contact admins and tell them about bugs (maybe even they have some bug bounty?!), that would be the honest way, and if a site is fair they will reward you for doing that!

I don't see the point in making anything about this for us users... I don't think it can come in handy to any ordinary and fair gambler! Aside from my joke that some newbies can learn some basic tricks from this, it can be useful for developers, casinos, but then it's more like a service and this is not a place for that discussion (OP should move his thread).