Interesting development. The company Medium now runs a Mastodon server at the domain me.dm and they are inviting prominent Medium writers to switch their Mastodon accounts to the domain.
I imagine more and more companies will run their own instances for their employees & clients and use this as a form of advertising.
@cary I think (hope) eg newspapers, org, authorities and companies will have their own instances. It will, like you wrote, give them easier to make verification eg the green Mastodon mark for employees. It will be easier for us to understand it really is a person from that company, org, etc. And of course, the person can have one or more additional accounts if desirable to distinguish between roles.
But there may be drawback as well, that I am not aware of.