Seems, I am into the game where I don't know the rules well. I added him into my trust list because he helped me two or three times to rank up and not only me, he helped other users too without asking. Then, I noticed that he is trusted by many and he also has some good threads, like
this1 and also
this2.
When someone is creating good posts you appreciate them with merit, when someone helps you to rank up, you can make a post to appreciate them in public. But none of this has anything to do with adding or excluding anyone from Trust list unless it is a concept about how they see the system. Fact is Ratimov was using your ignorance and all those helps were just to take the advantage of your unknown territory. Many like you are victim of it and giving him the power to abuse the system without knowing the result or your inclusion.
If you are not sure about how the Default trust system works then it better not to add/remove anymore from your trust list. Keep it empty. Study the general concept of trust list, ask questions about it in a separate topic to clear your understanding. I am glad finally you evolved in the discussion and I hope you will learn many things about trust system from the discussion.