Did you get permission to copy yahoo's signature thread layout word for word? It's identical to
Windice.io's campaign and fits yahoo's general style.
IMO it's good if someone new to forum is using campaign format of the veteran manager. Yahoo's campaigns' rules and conditions are very feasible in maintaining quality on the forum and at the same time reducing spamming.
I don't think using others campaign format is very serious offence. But if we think as per general ethics then he should have asked first.
Using veteran manager's format doesn't mean he will be able to manage as like the veteran manager which is the purpose of the format/rules.
I don't think it's a good practice to use resources of other people without permission. They must have asked yahoo before using his format.