The storyboard may cause crushes and you should fix that so it can be a nicer experience to play this map!
About the diff name, I'd like to defend for Nold since I find it valid with reasons list as follows.
Original Rule
A difficulty’s name must be unrelated to a username. Guest difficulties, however, may indicate possession with its mappers’ username or nickname. (e.g. Guest Mapper’s Insane). Words that happen to be usernames are acceptable within difficulty names as long as they relate to the song.
Reasons
0) Rule is defined as "unrelated to a username" instead of "unrelated to a user".
1) Nold has many maps that are not named after "Posthumous";
2) some other mappers also use "Posthumous" as their diff names;
Combining 1) 2), it is not fair to correlate Posthumous with the mapper, according to the philosophy of F-test.
3) Posthumous can indicate the difficulty as it is often related with death, hell, or something just like that. If it was unrankable, common diff names like "Hell" should also be considered unrankable;
4) Nold has never claimed that Posthumous is his sole diff name, and so is with mappers like Sotarks (Melancholy), CLSW (Nervous Breakdown), fort (Game Over), etc.
Conclusion
Posthumous is a valid diff name. Even though Nold uses it frequently, there does not exist a proper reason to discourage him from using this diff name. Otherwise, if the "relation" were a reason for the prevention, we would also forbid everyone to use a diff name for more than four times, and "Posthumous" would become a diff name that everyone except for Nold can employ, both of which are apparently unreasonable.
About the diff name, I'd like to defend for Nold since I find it valid with reasons list as follows.
A difficulty’s name must be unrelated to a username. Guest difficulties, however, may indicate possession with its mappers’ username or nickname. (e.g. Guest Mapper’s Insane). Words that happen to be usernames are acceptable within difficulty names as long as they relate to the song.
0) Rule is defined as "unrelated to a username" instead of "unrelated to a user".
1) Nold has many maps that are not named after "Posthumous";
2) some other mappers also use "Posthumous" as their diff names;
Combining 1) 2), it is not fair to correlate Posthumous with the mapper, according to the philosophy of F-test.
3) Posthumous can indicate the difficulty as it is often related with death, hell, or something just like that. If it was unrankable, common diff names like "Hell" should also be considered unrankable;
4) Nold has never claimed that Posthumous is his sole diff name, and so is with mappers like Sotarks (Melancholy), CLSW (Nervous Breakdown), fort (Game Over), etc.
Posthumous is a valid diff name. Even though Nold uses it frequently, there does not exist a proper reason to discourage him from using this diff name. Otherwise, if the "relation" were a reason for the prevention, we would also forbid everyone to use a diff name for more than four times, and "Posthumous" would become a diff name that everyone except for Nold can employ, both of which are apparently unreasonable.