Reading an article written by the folks at raspberrypi.com about why they set up their own Mastodon instance, and I find the following statement interesting and compelling. It goes on to state how their DNS registrar effectively provides verification that they are who they are.
We’ve opted to host our own instance. We’ve done this because, with multiple instances out there, we had to decide how to make sure people following us knew that our Raspberry Pi account was the “real” one.