I argee with worldofneil here.

And even tho they're bot, and even tho we humans know that they are bots, SE wont bother to ban them unless there is proof. (like a video showing them in action)

Why won't SE ban them without proof? Because why would they? Even if they're cheaters, SE still make money from them monthly. So that why they wont bother UNLESS you showed them a video of them botting, then they will have no other choice but to ban them.

Don't take it the wrong way, it not just SE that are like this. Most of businesses are like this. Only cares about money.