I think the point has been lost here. I saw something wrong. I reported it to the engineer concerned. Absolutely no action was taken. The leak could have been anything. He never looked.
To say aircraft leak water all the time is a slap happy attitude.
Going back a few years, the Boeing 727 had a special check on the forward toilet service panel after an accident where blue ice formed and broke off into the airflow. The result being detachment of the number three engine.
Where there is concern then report it. It is far better for the CAA to find no action is necessary than to have a serious problem go unreported.
It is so easy to witness, comment and take no action. I will always be of the view that if you feel something is not right, do something about it.
Coop & Bear