Can I introduce my friends to sign up by letter (in which I put in the text link of some programs) or in my wedsite, even in forum? If I also interet in some proprams, Can I sign up by myself? And what other behaviors do Cj not permit? Thanks!
Typically the rules are made by each advertiser, not by CJ. If you have questions about a specific affiliate program, email your specific questions to the program manager.