Joe, we're close in age so we had pay phones, typewriters, we had ABC, NBC, CBS TV. Here in metro Detroit where I grew up had channels 50, 56, 62 & channel 9-CBC. NO internet, NO cable. Yea we're old, that's what my nieces/nephews tell me once in a while.
Back to twitter, I have tweeted 5397 times. Yes I've tweeted about my dreams, my vacations, what I'm having for dinner, got in pissing contests with sparty fans. I'll tweet a lot about M FB or BB. If I'm at a game I'll take a picture tweet it with a caption. Yes, I'm addicted to twitter, guilty as charged!!!
I work in HS athletics, its funny after a 2 hour BB basketball practice, the kids rush right to their phones check twitter, check for messages, its liked OMG I wasn't in contact with the world for 2 hours, OMG what did I miss!!!!!!! When I played HS BB, kinda remember we'd sit around after practice bullshitting about who know what, a little team bonding for 5-10 mins.
To answer one of your questions, yes if you go on twitter & tweet about your college visits, what schools you're considering or what school you chose, in a matter of minutes thousands of people can read it. And yes there are a$$holes out there that will respond to the kid I hope you break a leg, break your neck. I have read about where adults have tweeted death threats to a kid for picking a certain school.
I go to the pre-season dinners/meetings coaches have with players & parents of each sport. In the last yr. the coaches are now spending 5-10 minutes talking about twitter and social media. As smart as the kids are, sometimes they don't think before hitting send. Here's an example, a kid on our boys BB team didn't like how little playing time he was getting, so tweeted something to the effect the dumb ass N coach don't know how to coach. Of course it got back to AD & coach, kid suspended from team for 2 weeks.
I follow a lot of people associated with M athletics, so if any news about recruits, any breaking news, or just general news about M, I can read about it.
Also follow @coachcussmeir, @hadybroke 2 parody accounts for some laughs, follow the real Coach Nussmeier @CoachDNuss @theblockm @umichband @MGoFeed to name a few