For my part, I try to give life to all NPCs with a way of speaking that is specific to each. As DM, I play all the other roles and I want to make it alive, realistic and captivating. It is not always easy but I try. This is what RPG letters really mean. Nothing else.
To you and others, sure. Fine. For me (and others)? Well, I really don't want to be mean, so I'll say no more.