How exactly is that "mad"? She's acknowledging you have germane experience in the field, and is inviting your comments... she takes issue with your rhetoric. Furthermore the post she links (
link) is quite reasonable. Rather than outright banning Wikipedia from schools, she suggests using it as a teaching tool.
FTA:
QUOTE
In this paper, we will present a theoretical framework for using Wikipedia in the classroom, not as a source for research, but as an opportunity to conduct research and engage in critical thought.