I usually don't entertain this subject because I love bouldering, sport climbing and trad equally. After just spending 10 days in Yosemite it dawned on me that for the most part the bolted routes that I climb tend to be scarier than the trad ones. I don't know what routes people are climbing trad on regularly but almost all the classics that I can think of in New Hampshire tend to be so well protected that they are less scary than the bolted routes. Recompense, Intimidation, Diedre, Lichen Delight, Robinson Crusoe and dozens of other classics are so well protected that they are only as dangerous as you choose to make them, (bold by me)
First, we have to define what is scary. Some people are scary of falling and some other of failling. One will be sary of a movie. With the exception of an heart attack, there is not a lot of danger to look a scary movie.
In trad, ordinarly, when you are scare, you are already in problem. The ethic is too make sound decision to be safe first and to climb, second. You are not climbing over your helmet, but at your limit and a little bit more. As you have to define what is your limit, you will understand that for some one, climbing 5.7, it is his limit. or climbing 5.8. A beginer in trad is generally a leader of 5.7 and under for the reason that I will describe in an other discussion. So, if you begin to be scary, it is because you have a lack of knowledge in safety.
In sport, there is bolt. The bolt are place in a way, in general, that it will protect the climber from any injury. If a climber is scary on bolt, pratically top rope for some trad climber, maybe there is a problem. They are scary, but they push the move because a fall is not dangerous. After a fall, or ten, pulling the draw to came back to the hold, the climber won't be scare any more and he will be able to make the move.
recom-beast is not so easy, and accident happened in the past because bad protection (long fall), in intimidation, some climber felt in the first pitch before the diedral. In the pitch two, a block felt this summer and I think that they place a bolt to protect the move (I hope that it is at the same place than the block to keep the integrity of the climb). In diedral, fall on the offwithd in the first pitch and the pro is not really so good (placing a pro, if you don't fall on it, the pro is still questionable, not good).
"classics are so well protected that they are only as dangerous as you choose to make them" is very true. But as you climb on bolt, you can thinkt hat your pro is as good as a bolt (death of a climber in quebec, anging on a bad cam number 4). So, for a trad climber, we can not say: go try nutcracker, and come back to told me if all classic is so well protect. We can't say that a classic is R, because of the danger to kill someone. Gypsie, second and four pitch is not so well protect and it is a popular climb used as finish at recompense before.