I went to a SW just as a developer, and the first few teams I talked to already had their MVP and were essentially feigning that they were a new idea. Basically just wanted some free labour for the weekend...
Ended up making a team with nothing but devs and we built a silly hardware prototype. We ended up winning, then stuck with our day jobs. We were all taken our of our comfort zone, would definitely recommend SW despite the few that try to take advantage of it.
As a shy dude who just writes code all day, it basically forced me to become a better communicator.