Not only large number of user, you should mention also large numbers of newbie. But I will mention them as spambie. A newbie joined back 2 days, he is suggesting for new rules for DT selection. Is it really not look surprise?
Yes, this directly points that the newbie accounts are controlled by some one with good knowledge of the forum activity and how the trust system works at the same time they are afraid of the circle to mod them on there real higher level accounts and get red trusted. Its pretty simple logic you should try to understand.