In essence, it's simple: the moment they started adding more social features. Seeing how every network eventually spreads to the same directions (comments, reac

In essence, it's simple: the moment they started adding more social features. Seeing how every network eventually spreads to the same directions (comments, reactions, stories, media elements, etc. ) the problem is they don't stick to core motives. Twitter: sharing 140 char (the 280 change was based on data, but still, it's a significant change) TEXT. It should never have grown into threads, images, videos, etc. Somewhere when it was still text only, but @mentions and #hastags already existed it should have stopped. Unfortunately this system wouldn't have the exponential growth in it, only to be a good system, an infrastructure.