Why do pro-gamers spam hotkeys?

[bennyboy]

I wonder if a game is still fun at that level or if this kid feels like he's at work.

I remember my friends used to call me a spoil sport because I'd take command and conquer really seriously and mass produce the best units while they were messing around making their bases look pretty.

I suppose the fun part is winning all the time and getting a fuck load of cash from sponsors.

Professional League of Legends players stream twitch all the time, and you can tell by their voice chat that they're having a lot of fun.