according to me Codeforces user interface is bit difficult to understand for a beginner ,as a beginner I can list down some points:-
- no proper chart or table for rating (as we are not able to find at what rating we get what rank)
- complex tags (like API EDU GYM CATALOG)
U'll understand it after time
The fact that you were able to post a blog with proper formatting shows that the interface isn't that vague or unusable after all...
Spend 5 minutes learning.
How do you expect API to be written as?