He's running a business modding people's devices, Nintendo catches on and sends him a cease and desist, and so he stops. Congrats, you have narrowly avoided certain financial ruin, and made a bit of cash in the process!

All forms of business and economic-self-preservation logic would tell this guy to continue ceasing and desisting, but he opens the shop back up shortly after and Nintendo, as they are known to do, sues his ass off.

What exactly did he think was going to happen here?

disgusting the way they go after people