Good catch OP.
Slightly OT, am not sure why you included in the thred's title that the offender is a campaign participant! It doesn't make any difference as the rules apply to everyone.
Maybe your intention is to catch the attention of the campaign manager but others may interpret it as you are targeting only those who wear paid signatures.
That's true, it's why I using "Roobet.com" in my title to gain more attention. You can look, after 19 hours I create this thread, still no one DT tagged these cheater. After DT tag this user, I'll remove "Roobet.com" in my title as you want.