talkpedlar:
The BA website says quite clearly that you should NOT tell anyone that you have applied and should NOT share any details of the interview/assessment process...all this, understandably, in the interests of fairness.
I think you've interpreted it differently to me:
Whilst we appreciate you may want to discuss your application with friends and family please do not share the details of your application and any subsequent assessments with others, especially those applying for the Programme. Sharing details may compromise the fairness and integrity of the entire selection process. Furthermore, it could advantage other applicants and potentially disadvantage you. It may even disqualify you from the selection process.
Now, to me, that doesn't say don't tell anyone you've applied, it says not to discuss the details of it. Which, so far, no one has.
However, input appreciated.