I understand and don't disagree with this sentiment, but I also think it's worth considering the Internet fame you've developed over the decades. Your blog isn't a diary. A lot of people are reading it and you might take that into consideration. It's going to be shared far and wide whether you intend it or not.

I'm not really a fan of Scott Alexander any more, but something he used to do years back that I liked was putting an "epistemic status" disclaimer at the top of every new post. Some were well-researched, evidence-backed treatises. Some were barely idle shower thoughts. Everyone's musings, whether they write them down or not, probably fall into categories like these. But when you know others are reading it, it can be helpful to make very explicit which is which so readers know what to take seriously and what to consider exploratory and possible but also only preliminary and maybe a deadend or even wrong.