> see who has the last "lulz"

My bet would be "the one who isn't in prison".

And then go to jail for even a longer time. I don't doubt that it could happen, but it would be a pretty stupid plan.

Criminals aren't usually known for their intelligence and foresight and by definition they don't operate under the same code of ethics as most people. I imagine also in some circles your first trip to the joint is a rite of passage. So unless you know who you are dealing with it makes sense to take a cautious approach to any response to criminal behavior you make on your own.