Since we all are obviously anxious and the increasing number of posts today indicates that most of us feel, that sharing helps them to handle the anxiety, I'd like to add my thoughts about the button theory
I believe, we have to distinguish between two groups of applicants: Those candidates, who could get an unconditional offer and those who only could get a conditional offer.
My understanding is that one is only eligible to a conditional offer, if the person has to prove the fulfilling of some criteria. The most common should be the proof of graduation with a first class degree (for those applicants, who were still in their undergrad when the deadline passed) or the uploading of a specific language test result.
Applicants who could get an unconditional offer (if they got an offer) are those, who don't need to upload further documents as their application was already fully supported by the documentation when the deadline passed.
My assumptions are the following:
1. If one is a candidate who could get an unconditional offer, the disappearance of the button only indicates that a decision has been made but doesn't imply its nature.
2. If one is a candidate who only could get a conditional offer, the disappearance could mean, that the candidate will be rejected while the ongoing appearance of the button can mean both, that the candidate will admitted or waitlisted.
Question: If you are still able to upload documents, what category of documents does it show, when you click on the arrow next to upload?
3. We don't know what it means, if it means something!! The waiting is driving all of us (including myself) crazy and I now really feel like this Pepe Silvia guy. Please don't feel stressed, if you fall into category 2 and don't see the button anymore, I don't believe that there's a meaning at all.
Hang in there, results will be released soon (hopefully).
Just the best to all of you.