1. Social Media tools are easy to take into use. Teaching in Social Media does not differ significantly from traditional teaching. Same principals of pedagogy apply. Pedagogy is important, not the tool.
2. Social Media tools are not a value unto themselves. Social Media tools are fashionable but they carry very little added value per tool. Some areas of teaching yield better to Social Media than others. Challenge is finding the right tool for the job.
3. Safety is an illusion. There has never been cybersafety. If someone really wants to break in, they will. Today, it is more dangerous for a student's future career not to use Social Media, than to use it despite the "safety risks".