I really wonder what the user experience would be like if only the creator of the post could see the "likes" on Instagram and Facebook. Similar to Snapchat, I think it would alleviate some of this anxiety and need for validation if we didn't see how much attention our friends get on social media.
The interesting thing is that there are at least 10 buildings/floors leased by IBM just in Manhattan.
The prominent ones are the "IBM Building" in midtown (that used to be owned by IBM) and still has its name on the building and the somewhat iconic 51 Astor Place which is the Watson HQ.
It's psychological. As soon as you put something on FB, Twitter, etc. it's no longer "yours". Snapchat makes conversations and pictures disposable. It's just fast and ugly. And it powers the app by nudging by users into creating content to send to a friend without having to worry about rehearsing for the perfect picture/tweet/etc.
Also it's private. Facebook is mainly used by people with friends and family. Celebrities/notable figures rarely interact with others outside of Twitter. But even with Twitter, the interactions are permanent -- even when tweets are deleted.
On and it's great for sexting, which let's not kid ourselves, was the original appeal and still is for a lot of people in their target demographic.
I mean there's also a couple other things that differentiates McClure's situation. He's also married. He seems to have accelerated the harassment immediately. Obviously I don't know the details, but it doesn't seem like he was just asking her out on a date. And if he did then clearly she wasn't receptive and he should have stopped. I think it's pretty easy to see that there's a clear violation on McClure's side.