I'm sorry, but 'the entire modification is doing stuff the end user never knew about and auto clicking the install button' (WHEN THEY WERE FREAKING INSTALLING IT) is about as malicious as
PHP Code:
echo("hello world");
As a lot of users assume clicking the install button actually installs the modification for you, I doubt anyone is filing with Data Protection over something so trivial. After all, don't you think the user would realize something was up when they say Installed in front of the thread title?
I installed a style once. It had a wc3 image at the bottom that clearly didn't come with the style. Freaky stuff ill tell you.
If you download my work but don't install it, what the hell are you doing with it? It plays a lousy game of Parcheesi. I didn't even know you could download 400 hacks from here.
I think a simple word to the offender would have sufficed instead of having it seem that clicking an install button was akin to cannibalism.