Originally posted by Gecko4lif
every punch kick and energy blast since the freeiza saga could blow up a planet easily
You WOULD have a point...you know, if what you said wasn't completely unsubstantiated.
You see, all the way to the end of the Buu saga, people punched, kicked, and blasted the Earth, leaving no more than a small crater.
The only time 'planet destroying' attacks were unleashed - they were called such.
Goku charged a Kamehameha that could destroy earth, and then teleported so as to not actually harm the planet.
Vegeta did similarly, but pulled the blast so it wouldn't be as strong (against an android).
Cell had to charge up to unleash a planet destroying blast. Even Buu took a little while, and everyone COMMENTED on the planet destroying nature of the blast.
Indicating that it was very uncommon.
It's not as if the average nameless ki-ball-blast-whatever was a planet cracker.
And NONE of the characters in the series ever demonstrated the kind of strength needed to bust a planet with physical attacks.
Ever.