This thread is about testing oneself strength by doing pull ups and not about riding position or stretching. You said that pull ups are of no concern to cyclists because they don't have a direct carry over to riding position, then you go on to say that it would be better to bend over and touch your toes and do stretching instead. Maybes some cyclist just like to test their strength by doing things and activities which may not be directly related to cycling, there is nothing wrong with that. And BTW, riding position on a bicycle isn't the most optimal position for healthy posture and that's why any type of pulling exercise such as pull ups and rowing exercises are great especially for cyclists because those exercises can correct bad posture and improve core strength and upper body strength.