Although i shoot single and have never switched to continuous before but i believe there are certain situations whereby you would need it. Most commonly it's for sports. To answer your qns:
1. Being able to sync accurately with the jumping or moving object gives me more satisfaction than spamming the frames and then going back to choose which are the ones you want, and that leads me to the second point.
But how many people are able to sync accurately and how long do you take to sync accurately? Yes if you are just an average shooter and you can miss the shot than it's ok as you can afford to miss it, but what about those who are paid?
Like I said, I don't think being safe than sorry is something that should be discussed in this thread.
2. Deleting photos, on the camera/ computer, is tiring and unnecessary.
Tiring and unnecessary than we wouldn't need to have a delete button now would we? And also there is always the ctrl or shift button to aid us in making our life easier.
Ok.
3. No point using the continuous burst if it's not fast enough. Not only the camera, if you are using strobe lights, for most strobes, it wouldn't be able to handle the continuous burst.
But what if we are not using strobes?
What if you are not using strobes? Other factors could still affect the photos taken. The autofocus speed, for example.
Of course, I do recognize that during official events, it's better to be safe than sorry and that's reasonable. One thing I just couldn't subtly understand is that why do some people just love to use the continuous burst for just anything? From shooting dead objects to portraits. Ok, there's this thing called exposure bracketing and that's reasonable too.
That's their style, let them be. There is always a reason for people's actions. If there is no reasoning behind their actions than just leave them alone. Do you lose a limb if they shoot continuous?
No, I don't lose a limb if they shoot continuously. That is their business, and starting a thread about something I don't understand is my own business and people who want to comment or etc can do so and it seems like you would lose your ego if you didn't start talking about people minding their own businesses when this thread was opened, in truth, for the purpose of a potential discussion and indeed, for the purpose of knowing different perspectives from different people.