Spam hook always return true

[kristk]

I have tried to fix an issue where the spam hook always returned true. The main error is in the StopForumSpam where the comparison of the response from the web service does not work. I also found an error in the Spam class where a reference to the addError method was wrong. My big question is if my fix is to easy? Is the error for instance depending on php or modx version? Or has this hook never worked?