Its just a way to branch out to a lot of people.
People do it everywhere. I see it as part of the social medias, just like adding your friends to a facebook group for your new business.

I know that I have found amazing creators content on different social medias, but I wouldn't have go out of my way to find it.

If @cryptofinally never added a link in her posts about her interview with Charles Hoskinson I wouldn't have found it!

I didn't see her actually post about this interview, but I saw it down in the "affilations" - Its only a bad think if you aint a curious mind x)

Or thats my opinion either way.