How to use SNS (I'm assuming that "SNS" means "social networking service")

What kind of SNS do you use?
Although there are many more types of SNS, I usually use SNS, Facebook, Kakaotalk, Kakaostory, Foursquare, Instagram and Pinterest. Compared to the previous communication tools, through the SNS social networks, we can tell unspecified number of reach any number of people of different ages without filtering (unclear on what you mean by "filtering"). It is There are both the advantages and disadvantages. so I think that we should keep etiguette even more need to keep etiquette in mind more than ever. When I was younger than now, my expression is more free I expressed myself more freely.
Now that I'm getting older, it's no longer as easy as what i say to say what I want. Facebook is a more open form forum than Kakaotalk, so I usually use that tool if i to keep in touch with different generations groups of friends, listen to latest friend's read my friends' latest news and get real time news. On the other hand, Kakaostory use is like a personal diary with a more narrow relationship. On Instagram I only update the news about food and my puppy.
What about you? How do you take advantage of SNS?