~
It would also be good to not only sharing of website link, but also to do a follow up with the referral to know how they are coping or flowing with the casino and also teach them how to identify scams so they do not get trapped in any of the scam related events or activities by scammers.
Follow-up is good because it shows concern; that is, you are not just interested in referrals but also interested in their experience. If they are not members of this forum and they have issues after your referral, maybe with deposits or withdrawals, your follow-up will help you point them in the proper direction to go about resolving their issues.
Aside from that, because you know that there is a very responsive ann thread on the forum, you can help bring their complaints here.
Not just bring their complaint here, but actually bring the user here, nothing is wrong bringing them on board on this forum, atleast, with they themself here, they can not depend on their up line to much, but they can easily find important information themselves by either searching, or asking the right question.
Away from the above, it's absolutely a necessity to follow up on referrals actually, this is a very good practise that I believe all of us need to practise, because just as you have said, it shows concern and care, it is wrong to only want to refer people simply because you want to earn money from the referral reward, those who do this will lose opportunity of having to refer same persons again in the future when they discover another platform, because they already know that the only reason for referring them is to make money through them, that immediately they sign up using your link, you totally forget about them, this is a bad thing.