Google+ also relied on users to correctly categorize their posts to the right stream or interest. Software developers tend to be good at dividing things into near little categories. Other users not so much.

I don't know. I definitely think some people would just mass broadcast to everyone.

Using the example above, there's nothing stopping that person from bringing their whole self to board game night. They're choosing to avoid certain topics with a certain group of people, so I would expect some of that behavior to cary over to social media.

If I think about something like the "close friends" feature on instagram, I have some friends who just share way too much with everyone, but I've got others who use that feature pretty heavily.

I disagree. I think the types of people this article is about - the silent majority of non-tweeters - are happy to compartmentalise different aspects of their lives within different circles. It's the tweeting minority who feel like they need to broadcast their every righteous thought to as many people as possible.

> no one is going to pass an opportunity to broadcast their political views

I expect most people that held a job prior to social media (or-- really, holds a job in most industries except tech outside of a few cities) will happily tell you that people readily pass on such opportunities.

Presumably people are losing a lot of followers on Twitter broadcasting their political views when they are mostly followed for some other reason. These people might be motivated to correctly categorise their Tweets.

Yeah - you're probably right