We agree that on the issue we're discussing here, it's not at all comprehensive, and that's been the case with others. It's not intended to be comprehensive.
You are not in harmony with your church when saying that your experience in Purgatory will not be punishment but rather "fine." No, it's not a decompression chamber, an orientation session prior to entering heaven, or any of the other revisions that Catholics strain to come up with. By the official position of your church, the inventor of Purgatory, it is a place of punishment for sin, like hell is a place for punishment for sin.
Yours is not in harmony with the teachings of the Church.
What is a problem for us is that part of the time you say that you have to take the POV of your church, and part of the time you say that you are allowed a private interpretation of Scripture, or even a personal opinion based on nothing more than wishful thinking. You do what you criticise us severely for allegedly doing. This makes discussions about doctrine and practice difficult when the church that never changes does change, when what's called non-negotiable and infallible, turns out to be not that at all when it's inconvenient, and when the authorities that you base doctrine on with some matters don't count at all at other times. I hope that helps.