Also I mean, if you have found some bug and it’s actually a bug, rather than some game mechanic you misunderstand or, more likely, a game mechanic a dev doesn’t understand that will be explained as “working fine” once explained:
At the end of every game, some information is sent back to GoW. It’s not really clear what that information is, but I’ve played a lot of games where for anti-cheating reasons a lot of information like moves made, starting board, total damage done, etc. are part of that kind of packet.
So even if you aren’t SNIG (same name in game), you just posted on their forums with an IP address that is likely very similar to your own. Or maybe you’re smart enough for that, but have you done it for every forum post? Ever posted a screenshot with your name? Ever sent a DM to a guild with your invite code? There’s probably something, somewhere, that ties your forum account to a player account.
Then, they just have to watch their telemetry. Then, they know what you’re doing. They don’t need “luck”. They just need a reason to care.
And, well, knowingly exploiting a bug might have a punishment. Maybe confessing this way wasn’t a good idea.