So what's your proposal to deal with such a problematic behaviour?
The guy is quite nice - he only made the thieve risk his reputation by the consequences of his own action. He didn't involve anything like law enforcement, the hosting company or the banners network - which would have cost them time thus money.
All he did is take some of his own time so that the scraper would get the "accusing" version of the website next time. He fixed that at his own expenses.
I believe many of us wouldn't have been that nice. And yes I believe he should keep an eye on this thief, because from what he said (the games didn't play) the guy didn't spend a lot of time on that borked job.
For all we know, this might be his full time job - copying websites, replacing copyright notices and authors, making money out of it with banners. All he needs is a process that scales well financially to be a "scamtreupreneur" (Couldn't find a word so I made up one. Do I get karma claims on that word?? :-))
With bots, selecting target websites etc. it might be possible to make a living out of it while true entrepreuneurs are starving in bootstrapped companies :-/