See though, we know that and we love you for it. But UX (User Experience) is a bitch as well. I learned that the hard way when I had my websites evaluated by a graphic designer who told me they suck because the user can't figure out s**t and generally skims the website rather than reading the details. The fact that you have created the post for new students though is a step in the right direction.
As Adin said, this needs to be explicitly stated. It doesn't have to contain exact numbers (i.e. we will get back to you in 2 days or bust). I get that there's a better way of conveying one's frustrations at this matter and I get why you're pissed. But a generic message when posting like "Duu to a large number of spam attacks in the past, we need to make sure you are not one. Please allow a few days until this gets approved." will do wonders. Again, the thread you made for new students is a step in the right direction.
I am a software developer and I know how much it takes to get shit done right. And spoiler alert, it's like Jak said, it takes months. I can understand it takes time, but most people don't know or don't care.