Printer Setup Repair 5.0.3 indeed erases the contents of the Preferences folder if a pirated key is used. While there is no excuse for using pirated keys, this kind of response is absolutely criminal. For example, all your mail.app preferences are lost and you suddenly do not see you mail any longer. Furthermore, simply re-creating the coounts may erase your mail by overwriting the mail directories with empty folders. The solution is to move the Library/Mail folder elsewhere, recreate the accounts, then quit Mail.app, move all the contents of the old mailboxes in the new places: at this point you do not see your mail still, and you have to rebuild all the mailboxes from withing mail.app. Then all the mail is
recovered.
This is not the correct answer to illegal copying. Deleting data from the user's disk drive without the user's consent is a criminal behaviour. There are many ways to scare the user (you can redirect to a webpage stating "Dear USERNAME, currently logged from IP NUMBER, in the area of GEOGRAPHIC AREA,
using OPERATING SYSTEM AND VERSION, pirating software is not only illegal, but also prevents further software to be written by discouraging the author, that spent considerable time and resources bla bla, please click the button down to be lead to the registration page". That should be enough to impress normal people.
From now on I won't download any program from this author. This is a pity for him/her, since recently I started purchasing a lot of legal licenses...
The low markings are then reflect an assessment of the behaviour of the software writer.