OP, if you don't realize all of those guys are the same person, you're blind. 
you mean me?4 different accounts, 3 registered on May 25, 1 registered on May 26.
All 4 accounts joined the signature program in 12 minutes.
All 4 accounts made posts on May 31, and then went inactive, until today.
All 4 accounts made posts in Chinese section only.
Are these enough lol?