How likely is it that someone will offer money for a signature space to an account that has been quite inactive until now?
Because OP has such an username lol.
Who knows who did but this is unlikely to be a participant in my opinion.
I agree with your opinion because no signature campaign participants would do such but rather, a competitor who have been hating secretly and does not want his or her identity to be known by the forum members.
Competitor? I know all the active campaign managers and I believe that their standard isn't such low. Do any of them have such lower mentality? I believe no.