I think you are misremembering. Partially because what you are describing is very similar to that thread, but with a misunderstanding (or misremembering) of the thread-you describe in your thread that system, and he says something similar to it being a mcdojo but is distinctly not referring to your dojo (which you seemed to miss). But mainly because you're indicating it was from an older thread of yours, but that thread is from a month after you joined this site, you only have 6 threads before it, and none of them are about rank advancement at your former dojo.
Unfortunately, this falls in line with how memory works: when you recall something, you're not actually recalling it. You're recreating the memory itself, and then when you're done remembering it, that new memory stores itself in your mind where the old one is. Then the next time you remember it, you're recreating a memory from the new one you stored, and repeating the process. So your memory quite literally changes, almost like an internal game of telephone, and no matter how concrete the memory seems, it's not always accurate as time goes on and you remember it more often.