Earlier quoted context omitted.
Please build a system with 100% availability under load and with no false positive. I'll wait.
> Please build a system with 100% availability under load and with no false positive. I'll wait. Seriously? This is absolutely trivial: you don't build a system like this in the first place , as whatever is failing here--and 100% if it is a system actively designed to prevent people from posting links to their own timeline--isn't providing value: it is just a bigger surface in which there are going to be random bugs…
I'm a little lost at what your point is because if you think the above is malice, there's malice in every poorly implemented feature. Say Instagram does a rough check to ensure no nudity is contained in the images you're posting and that system goes down preventing you from posting to your own IG -- that too is malice?