The biggest thing is that I find my own posts cringeworthy 6 months back. Facebook's Timeline revamp a few years back really exacerbated this by making it easy

The biggest thing is that I find my own posts cringeworthy 6 months back. Facebook's Timeline revamp a few years back really exacerbated this by making it easy to jump back multiple years to see what people had posted. A small example: people often post memes & jokes on social media. Old memes don't really sound funny though, unless they were well recognized. They seem embarrassing or downright stupid. You look terrible if you find one of those old posts. On the larger scale: most people grow more mature over time. So you have this whole historical graph of someone's life and you can easily surface when they made less great decisions or were younger. Lots of people don't like this.