Scott Jon Siegel knows Zynga from the inside out. The game designer was at the casual game company as they grew to becoming a buzzed-about company, working on titles like Café World and Scramble. He left a while back and is now at PopCap Games. Like lots of other game creators, he looked on with concern as Zynga shed 520 peers on Monday in a massive lay-off. But, unlike lots of other people, Siegel has been offering some post-mortem twitter wisdom from Zynga’s meteoric rise and seemingly imminent fall. Check out the highlights from the #lessonsfromz hashtag below.