This is a pet hate of mine too. Taking barely enough fuel is just stupid and irresponsible. We are supposed to be safety conscious ! Do these idiots also drain the hydraulic systems down to minimum legal quantity for dispatch? Ditto Engine oil. Ditto CSU oil, ditto APU oil? - well it all weighs something and we have to carry extra fuel to carry the weight of those oils. Do they do the same in their own cars?
I heard of one prize tw@t in a previous airline who came back to the UK where SNOWTAMS had been issued; with PLOG +300kg, (A320/321). Another prize tw@t in another previous airline, well known for taking absolute minimum fuel wherever he went; decided to take just enough fuel for Guernsey. He couldn’t get in - twice - and just made it into Jersey before the weather clamped down there as well. When he was on stand and had shut down, his hands were trembling. Idiot. Irresponsible idiot