I am not a software developer, so pardon my stupid question.... Does the 178 url=https://freebitco.in/?r=178&tag=fs] part refer to your own referral number or is that part of the script?
obviously it is his referral link and others should change the number to their own referral link and remove the "&tag=fs" unless they want to set a tag of their own (which could be tracked in the REFER tab).
in short the "?r=178" is the referral ID and the number is the user ID on that site. and "&tag=fs" is for keeping track of from where people are clicking your links for example you could set it to "btt" for bitcointalk, "xyz" for your website,....
he probably just copied the whole code from his profile and pasted it here
