A writer usually forgets another role i.e. a reader. He/she was a reader once upon a time before becoming a writer. Now, things are permanently different for a writer. They can’t seem to enjoy someone’s creative word without wanting to change, modify it just like a driver who can’t bear another driver right next to them driving a vehicle. They are just not happy with the (unique) way the other drives maneuvers a vehicle.
How easily people can stop having fun once they start having a shot at it (creatively).