The commenter isn't putting it down for that, just explaining he'd be surprised if it did anything let alone something mischievous.
It not doing anything isn't the point. The point is that it's technically valid code, but is still relevant to human interpretation.
This was the point I was trying to make.
It not doing anything matters - generally, code poetry is something that does do something interesting while being relevant to human interpretation; so code that simply validates syntactically isn't that amazing.
Well, he's answering @bmmayer1's question. It does not do anything, so it is safe to run on your computer.