They treated their own raw data as trash, because that is what it is.
There's something else that's not being touched right now, if the so
called scientists defrauded their own work, who else in other hard
sciences is doing the same kind of crap?
I keep seeing more and more sentiments like this and it is bothering me for two reasons.
First, the raw data isn't "trash." It's just data. It's those adjustments and interpretations that are in question.
Secondly, climate research has become highly politicized, with vast amounts of money being thrown at it, resulting in the mess we see before us today. But that is not true of almost all other sciences. I see little justification for broad brush work at this point.
BTW, the original data has probably not been destroyed. EA's collection of data apparently has been, but they didn't generate the data in the first place. They merely collected it from other sources, who undoubtedly still have it.