I don't know about the title/artist, but it sounds to me like igor needs to just remove lopkyy from the tags or add him to the diff names.
In the description it says "but didn't changed these name diffs as your request" which is the downfall of language barriers, and I would like igor to try to rephrase this to make some sort of sense.
The way I read it, it sounds like someone told you to not put lopkyy's name in the difficulties he helped map, which is just incorrect, but I didn't find one person in this thread who's told you that. This leads me to assume that lopkyy themselves told you to not put their name on the diffs (perhaps to not take credit or whatever), and that's also wrong and kind of breaking the rules, since you have to put whoever is involved with mapping the diff in the name.
In the description it says "but didn't changed these name diffs as your request" which is the downfall of language barriers, and I would like igor to try to rephrase this to make some sort of sense.
The way I read it, it sounds like someone told you to not put lopkyy's name in the difficulties he helped map, which is just incorrect, but I didn't find one person in this thread who's told you that. This leads me to assume that lopkyy themselves told you to not put their name on the diffs (perhaps to not take credit or whatever), and that's also wrong and kind of breaking the rules, since you have to put whoever is involved with mapping the diff in the name.