@geekmomprojects @rasterweb to go even further, I think if companies (no matter how large or small) wish to be on the network, there's no real problem with it. I do think they should run their own instances though, so as to not overload the existing now, or at least contribute financially to running the network.
The beauty of mastodon for the users is how there's no algorithm boosting ads in people's feeds. This translates to a challenge for the companies then, to be heard. But the way I see it, if they engage in the network in meaningful ways, and add some of the Wendy's Twitter pizzazz when it comes to generating entertainment, and it should still work fine.
Getting followed initially will be harder as ads won't create the shortcut to exposure it did on Twitter. But on the other hand I expect the following to be a bit more loyal/interactive than it tends to be on the more corporate networks.