commentto has just updated the "Subscribers" part of the website to make things easy for you.
It is now much easier than before to know who you have made subscribers, and who has made you a subscriber.
Now when you go to the "subscribers" page, there are defined sections for:
"Mutual subscribers": You both have allowed each other to look at each others' updates.
"Subscribers only": Only you have made them your subscribers, and allowed them to look at your updates.
"Subscriptions only": Only they have made you a subscriber, and allowed you to look at his/her updates.
You might ask, "Why not just have add as friends or let me directly subscribe to someone?"
Well, "friends" model is very overused, and commentto is a content sharing network where "subscribers" and "subscriptions" models make more sense.
Also, by having you, the user, make someone a subscriber, commentto gives you control over who can see your data. So, for example, if I don't want a stranger to look at my excerpts, then I don't make him/her my subscriber.
Another important reason is because the features that are coming to commentto will be related to the "subscribers" model in a robust way, so that it is even easier for you to share excerpts.
Again, all of your relations on commentto are kept as they are. Only how your relations are presented has been made easier.
Try it out!