Not sure if its still valid that they are spammers but it looks like this guys are related to the recently banned LoL spammers, however this guys have not posted in the forum recently
Pattern is they post together but not all them in 1 thread, like malzahar will be followed by malphite, lissandra will be followed by luciann, olaf with orianna, then nunu with olaf, they are all registered May 28, 2014, all Full member, all under 1 signature campaign... and they are all League of Legend characters
Name: Nunu
Date Registered: May 28, 2014, 07:00:27 PM
Profile Link:
https://bitcointalksearch.org/user/nunu-336738Name: Olaf
Date Registered: May 28, 2014, 07:11:03 PM
Profile Link:
https://bitcointalksearch.org/user/olaf-336740Name: Oriannaa
Date Registered: May 28, 2014, 07:29:52 PM
Profile Link:
https://bitcointalksearch.org/user/oriannaa-336746Name: lissandra
Date Registered: May 28, 2014, 03:57:05 AM
Profile Link:
https://bitcointalksearch.org/user/lissandra-336440Name: luciann
Date Registered: May 28, 2014, 04:38:33 AM
Profile Link:
https://bitcointalksearch.org/user/luciann-336446Name: malphite
Date Registered: May 28, 2014, 05:08:52 AM
Profile Link:
https://bitcointalksearch.org/user/malphite-336451Name: malzahar
Date Registered: May 28, 2014, 05:24:05 AM
Profile Link:
https://bitcointalksearch.org/user/malzahar-336457this is related to this thread
https://bitcointalksearch.org/topic/supicious-users-1215394