I can give out the information too, but that will cost more. I can't give guarantees, referral behavior is changing depending on the site you use, I can only give estimates based on the sites I have worked with.
Yes this method is profitable if you choose the right kind of website which I can tell if you send me your referral link. A referral should cost you no more than 10,000-20,000 satoshi, so if your referral earns you more than this in commissions, which should be easy, then you make money.
Doesnt have to be crypto only, but I have only tested it on crypto, I guess it would work with other sites too.
Are we talking about real referrals here or are we talking about botnets/spammers that could possibly get you banned in some, if not all crypto/referral sites? Also, does it have anything to do with marketing a page or setting up a website to do with indexing categories of websites with which referral links are used? I assume not considering that there is actually a price per referral, which still makes me question if these are actually bots we are talking about. These would be pretty much useless as you can already get them from other sources.
It sounds like one of these organizations from Asia, where real people do anything online with real accounts, like votings etc etc. But of course you never now. I am not sure about this offer ... and how it was presented here.