@eshep I guess that @Jorge Stolfi was a) told that #Mastodon is the #Fediverse and b) given mas.to as the URL to go to instead of joinmastodon.org.

So whoever guided him to Mastodon either didn't know better themselves or wanted to make it as easy for newcomers as possible, short-cutting the instance selection process by directing them immediately to one instance and not even telling them that such a thing as instances exist.

It happened on Twitter all the time, also because there's only so much you can explain in 280 characters. That's why you have people who joined in November during the #TwitterMigration, who didn't find out about instances and Mastodon's decentral nature until February, and who didn't find out that there's more to the Fediverse than only Mastodon until March.

They were guided by tweets such as
go to mastodon its literally twitter without musk #^https://mastodon.social
or in this case
go to mastodon its literally twitter without musk #^https://mas.to