Aside from the unnamed security risks the admins mention, Texas A&M undoubtedly has an Acceptable Use Policy in place for their campus networks, and this would

Aside from the unnamed security risks the admins mention, Texas A&M undoubtedly has an Acceptable Use Policy in place for their campus networks, and this would be an AUP that restricts usage to academic type only. Technically it is against the rules of any university or college or school to be using non-academic, frivolous apps like these, by way of academic resources. It would be like renting a classroom to hold your bachelor party. Or a homeless person living in the library. That's not what school is for. Academic institutions are well within their rights to block all kinds of social media, especially when those apps are hogging bandwidth, memory, storage, screen space, or whatever. They're disruptive to the learners who pay tuition and they're a drain on taxpayers and alumni alike. Good riddance.