It drives developers crazy, realizing that their developer account has just been banned for life by Google for no discernible reason at all. The feeling of loss is there, especially the feeling of betrayal. But they should have known better. The last sentence in the Policy Guidelines & Practices clearly states that: Google is not required to send you a warning prior to suspension or termination. This may sound mean but Google also wants developers to read between the lines and self-regulate.
It’s like going home and finding your parents mad at you. They don’t say anything but looks at you like you perfectly know what they mean (of course you don’t!) but down the line you know you did something to displease your passive-aggressive parents. The best short-term solution is to trace your steps and look for tiny details. Even the simplest things can magnify and cause you to be in the situation that you are now.