Hello, you sent me Feedspot to beta test for you and while I generally enjoy it I find that it is not easy to unfollow a media source. You had Economía // elmundo in my feed list when I joined and I can't easily find where and how to remove them from my feed. Can you please let me know how. So far this is my suggestion to you: make add and remove icons easier to find.
Simply mouseover the feed name on the left column and click on the delete icon.
Does this help?