I've been debating starting a section of my personal site for stuff like this. Unfortunately it's a bit embarrassing, but i figure anything i have to google to learn, it would be beneficial to help others learn it as well. Everything from programming languages (lots of Rust errors are foreign to me, for example), to git issues.

I've often had the thought that if everyone did this it could have potential to be quite the open-sourced collection of material - a distributed self-answered Stack Overflow perhaps.

Is there any sanity in this? Or would posting everything as self-answers to Stackoverflow be more welcome to the average Googler? (higher ranking, better meta, more likely for the user to see it and community features such as commenting/voting/editing)