Hello,
As far as I know from what I have heard and experienced, illegal advertisements about drugs are allowed for the server rules, but definetely not for the law. Recently, I've seen a few people getting punished for advertising drugs on /ad, and I believe we need a high rank to clarify us whether it is or it isn't allowed.
I was once banned in RS4 for advertising drugs on RS4, but later on, Zaila unbanned me as he said that Cops were supposed to deal with such advertisements.
A proper clarification would really help.
Thanks in advance.