Rules find referrals in service part legal or not ?

dear admin:
i found a thread in service part ,it is about ptc ,he is finding referrals,not really buy or sell service ,i think it may against the rule,so plz check and see if it should be remove or not ,thank you .
ps:i don't want those thread to waste my time ,here is the link:
http://forums.digitalpoint.com/showthread.php?t=1782919
it is about neobux,here is the pm he send me

 

use the Report PM button in that PM and we'll handle it.
that user has been warned before, game over for them.

 

thank you ,i have report !hope admin can do something !