You wouldn't be a great HR because of such a shallow reason

If I was posting my LI to HR I might do the same, at least for that week, so I don't have randoms trying to DOX me.

But I also would never post my LI to HR for the same reason.

Dude that's the logo for the sports car company Shelby, which is also that person's name. It's just infusing a little bit of personality into the drab hellscape that is LinkedIn.