Many things in life cannot be proven 100% yet we take chances on the assumptions that they are true given a certain amount of evidence (sometimes flimsy, sometimes a huge mountain of it), so why is it different on this game? Why exactly does it seem like a person has to give themselves up to get caught? If we did that in real life then governments wouldn't be suspicious of one another all the time, ban companies from being in the country, catching spies etc. that never tell their motive, the list goes on even if the proof is say, 50-70% there.
It's just something that always intrigued me is all. I just always thought it kinda dumb that pretty much everyone who cheated either gave themselves up or didn't do a good job of hiding the AC or something. Even if one were to tell Ender that ACs still exist from known cheaters and that people are still using them he doesn't seem to believe it much anymore. He just does his thing and says shit is suspicious or not then nothing happens. It just seems without the entire give yourself up aspect, nobody ever gets caught :/