funny to say 'eatmyshorts' appears to be the only one who speaks everyday business in real life flying while all others seem to rise emotions from a purely theoretical point of view how written rules and procedures should be followed in a clinical sterile way instead of any actual work experience.
some few chats are fully ok and normal and he is correct that should a significant message come in at 121.5 any football talk will stop immediately and anybody will switch to listen or help when able.
it does not reduce any safety but helps to make a working day more nicely .