The answer is contingent on what you know to be true
should the purchaser go ahead with the deal....does the judgement means whatever mistakes they have committed in the past they will tend to commit them again...or its a positive sign
It doesn't say the purchaser should do it or should not do it, it's not positive or negative. It says
do not do it UNLESS you are sure that you will not make the mistakes you committed in the past. It says
do it if you are able to do things differently this time around.
You have to understand that about tarot cards. They don't like yes/no answers. So you're not going to get an absolute: "Yes, do it!" nor a "No, don't do it!" I'll repeat that a few times if I may...99% of the time you will NOT get an absolute yes/no in tarot. Do you understand? If not, re-read this paragraph until you do. Otherwise, you will trick yourself into seeing the answer you want to see in the cards, rather than seeing the truth and knowing what you should really do.
Tarot, in most cases, simply points out those things you need to understand or remember in order to help you make that decision. So. You clearly seem to want a "positive" yes-do-it answer...but the Tarot isn't going to give you that. Instead, the Tarot asks you: can the purchaser change or are they stuck in the past? Are they different now? Have they learned their lesson? Do YOU think they won't make that same mistake again?
Are you sure? Be honest.
If they've changed, really, really changed, then the tarot suggests that they can go ahead. If they haven't changed, if they're going to make the same mistake, then they should not do it. Pretty clear. The answer is not positive or negative; it is simply contingent on what you know to be true.