There will be successes otherwise nobody would ever be sucked in.
But it depends on many factors:
A, your definition of success. I.e. do you just want enough to have a small bit of extra or do you want to have enough to quit your day job and have millions in the bank?
B, the product you’re selling. It goes without saying that some products will sell better than others and that many e.g. juice plus/foreverliving/Herbalife/FM world Start out with a questionable reputation so you have to work a lot harder to convince people that it is actually a legitimate product.
A friend of mine did pampered chef for six years until they pulled out of the UK. It enabled her to stay home with her kids while they were in primary, and she made not only a bit of cash at it but had perks e.g. various conventions which were essentially holidays etc. But once they pulled out of the UK she had no desire to go to any of the others, and many of them did approach her because of her PC success. She says that she liked what she did, but it worked for her at the time.
And tbh that kind of thing will have a shelf life. It’s just not possible to stay that upbeat about a product for years and years and years, it’s a bit like a cult where the initial excitement is real and you want to tell everyone, but as time goes on you just go through it, and that’s when many people either give it up, grateful for being out, or move to something different because they still want the high.
FWIW anyone saying they know someone making six figures doing FM world is either lying or ripping people off to a huge extent. The way FM world works is they sell you their fake fragrances at cost price And then you have to sell it at a price you agree. And the rewards are reset every month so you can’t actually make decent money doing it.
I have known numerous others who have tried juice plus/foreverliving etc and the problem with those that they are incapable of thinking for themselves. Every bit of marketing is written for them, and they’re essentially just doing cut and paste jobs.
Although I consider it an achievement that I’ve managed to get myself blocked on facebook by all of them. 