Haha yeah, "fees" are getting ridiculous nowadays - as if ticket prices aren't high enough already!
As you say, it won't stop it from happening but if enough people report these sellers it just makes it more difficult.
I don't really have anything against people selling tickets at face value - only a couple of days ago I had a couple of spare tickets for the Emirates on Sunday because my friends couldn't come and was in a panic trying to sell them to recover my costs - but even then you should really try to only sell to people you know so the tickets don't end up in the wrong hands. Luckily a couple of other friends took the tickets in the end.
But selling free tickets for a profit (however small) is utterly disgusting. Clearly these people never had any intention to attend the show, when there are plenty of people who will have missed out. Makes me sick.