On the fundamental level Cake isn't a Social Network, it is an Interest Network. On a social network when you follow someone you get exposed to everything from that person. Their thoughts of the day, what they had for lunch or their political views. However the reason you wanted to follow this person was because you like their photography. That shared interest and discovering conversations around it is our goal here at Cake.
We think that what people really want isn't to "follow" a person like they do everywhere else, but to see that person's content above the noise in topics you are both interested in. For example: show me interesting conversations on topics I follow from people I like first. That is a complicated problem to solve at scale, but we are slowly trying to get there.