I can believe he got that deep either to call with K5 and crack aces.
But I find one major reason AA is often cracked is table presence, that is online and live. The second reason is obviously lower stacks have to take the gamble sooner or later to avoid being knocked out. The low stack calls I completely understand.
In Online play, people like me with a monster stack will raise pretty much every hand from position. Everyone knows I am being a bully, everyone knows I cant have a raising hand every hand. Hence, they lose respect for one possibly holding golden hole cards like your AA KK AK suited etc.
Agressive players also have there AA cracked often. I find those who play very few hands and have AA in the hole rarely get cracked. Because they have respect.
I know when I play live down my local Casino and in some CPT events, people totally shit when I push and the table folds.
Looking forward to tommorrow, have a monthly CPT event to play.