I love the fact people of so rational on this forum! I am purely pointing out that we have to respect other pilots' professionalism. It does no one any good to publicly slate one of our own on an open forum. It just gives the Daily Mail something to write. If you are concerned go through the proper industry channels.
Do we have to go back on stand every time a cabin crew member hears a funny noise, or a passenger see's fuel 'leaking' from the end of the wing, as can be the case on my aircraft. No, we use of knowledge and professionalism to make an informed decision, explain what the problem was, and thank them for their observation.
The Iberia has no way of answering your rather over enthusiastic critisisms and thus this is no place to start questioning his operation.