I have several hundred referrals through on online referral link.
None of them were active beyond signing up except for one who was active for about 2 months and then went dead (well over a year ago). I suspect he may have gotten banned because he was
in the forum bragging about how he had almost 350 referrals within a month of signing up. (I'm not to that point yet after three years of actively pitching the site!)
I have one personal invitation/word of mouth referral who remains active and gets me a $5 bonus about every 2-3 months. I've heard oldbuddy say it many times before that without a personal relationship with your referrals, you don't have a very good chance of most referrals becoming regular earners for you.
Sometimes someone gets lucky and they snag one of us as their referral. I have zero ongoing relationship with the owner of the invite link I found three years ago - and I have never seen him active in the forum. Hopefully he is active enough to get my monthly $5 bonuses sent his way. I don't know.
It doesn't answer your question and I agree.
Why sign up if you aren't going to make any effort beyond that? But I will admit that there are several other sites out there that I signed up for, then made a pretty quick judgment call that it wasn't worth my time/effort and didn't go back. Right or wrong, I think that is what happens to most people on FC who don't take enough time to properly evaluate the site and its earning capacity. Without a personal connection to them, we have little power to convince them otherwise.