I've been blogging for I think over 15 years, probably closer to 20. My blog has come up in job interviews and I think I've had some recruiters reach out after reading my blog. I also referenced some of my technical blog posts when applying for work as a technical writer, which helped I think. But mostly I use my blog to process my own thoughts and help integrate my own learnings for myself. I also often refer back to my own blog posts when doing something... a few times I've Googled for something only to see my own blog come up and realize past-me already answered future-me's question. Having said that, there are times when I read my old blog posts and cringe at my old self. It also feels nice when people either leave comments or email me telling me my blog post helped them solve some problem. So overall, it's just been rewarding on a personal satisfaction level.