There is nothing to "get". It’s all the same. Facebook, Twitter, Instagram, Snapchat. People want a free way to broadcast to their friends. Someone invents a service that does that. Slowly ads take over. Now the stream needs to be "curated". It’s no longer a timeline. It’s no longer sensible. Now you can no longer reliably broadcast to your friends. People search for a new service that did what the old service used to do. They don’t even realize that’s what they are doing, but that’s what they are doing. I’ve done this myself now what, a half dozen times? Every 2 years you have to do it again.
It’s the same damn model. It’s all the same thing. Sometimes I feel like I’m taking crazy pills. Does no one see this?
Snapchat will rule until he ads take over. Your stories will slowly be interrupted by ads. Then your stories will fall out of time sync and you’ll only get some updates or a "Featured Updates" or some other features that’s really just a way to prioritize and guarantee ad delivery. And while this is happening someone will put out something new, that essentially does what Snapchat originally did in a slightly different format. Maybe square instead of portrait or GIF or Live Photo or whatever. But it’s all the same thing. This game will continue forever.
All people want is a way to broadcast into a stream of content, and view other people’s content in a timeline. That’s it. It works for a while until you get too big. Then you can’t pay for it and you have to start inject ads and resorting the timeline until it’s no longer a timeline or it’s a timeline full of all this stuff no one ever wanted or asked for.
When I was 15 I’d get home from school and run to my computer to check my favorite message board. I’d hit "New Posts" and see all the content from my friends. Cool new video game discussion, new video card benchmarks, some photos someone uploaded, some rant. Honestly, nothing has really changed in 15 years except the format of the content has been continuously updated to be technically (and culturally) relevant. But a post is still a post.