Why: To learn from other people's experiences and see what projects other people are working on or have had in the past. Learning from other people's experience is priceless.
Me: I have had a couple of businesses fail my last being in late 2016. However they were classic web agency types where you need money and a tight team. Right now while in full-time employment I would like to sample some side "hustles" and see where they take me... who knows!!