I use my blog to mainly write about stuff I do that I really don't want to forget about, like interesting vulnerabilities I found or projects I want to share, reach is ~30k visits/month (still no idea how since I think it's kinda niche) but so far is working.

I consider it also a good way to force myself to keep thoughts in order and to do a recap on the activities I do that most of the time are very chaotic.

I would probably consider integrating messages also to receive feedbacks.

I use hugo with the backend hosted on GitHub Pages, so far is a pretty solid setup that requires minimal effort since I just wrote an action to build pages every time a commit is done on the main branch

In case you are interested: https://appsec.space