I've thought about it. I used to post somewhat rarely back when I did the whole twitter/tumblr thing. Really, I was just thinking of using it as a personal blog and writing down whatever observation came to mind as important enough.
Since I tend to really learn things mainly through rubber ducking it, keeping a running train of thought about my hobbies, etc. would really be helpful to me. Especially where linguistics is involved since I'd be forced to write down the words/facts I'm learning. I figured I could just probably not tag the ones that were just personal rambling so I wouldn't bother anyone.
........but then the very next day, I went into a whole mental spiral like I always do, and I remembered once again why I've never done any sort of journaling for more than a week. Nobody wants to see a live feed of a depressive psychotic break, least of all me the next morning.
I will happily check for and respond to others' microblogs, at least, and some hobbies have a lot more activity there than on the forum side. I'm still really waiting on being able to adequately keep up with mastodon users. Kbin still lacks a dedicated feed for that