You can get a domain name pretty cheap, so I do it all the time. I have domains like dysturban.com, plannedparenthood.co, kaitmoon.com, lostinplace.co, bipolar.fun, and johnston.io just to have them.
I’ve done very little with them in general, but I think I’m going to give each of them a purpose. A blog post or some random art.
I dumped facebook a few months ago and it’s been an amazing stress relief. But I miss posting funny, important, or random things. I could do 2 posts a month, each on a unique domain I own that is otherwise unused.