How successful have people been at finding a bona fide promotion scheme?

I seem to be getting more and more (usually cut & pasted) spam from multiple individuals, who all deliver the same jargon. Does anyone else get this kind of hassle? John

Sat down with a coffee and biscuit this morning, thinking I'll write. But, nothing is happening in my head, just one of those days...

May I respectfully introduce 'Shadow of a Survivor?' At 18, he was told he wouldn’t survive cancer. What followed was an agonising battle through the wreckage of failed treatments, where hope flickered like a distant light. Eight years later, his four-year-old daughter was diagnosed with terminal leukaemia. She, too, endured the brutal toll of chemotherapy — and, like her father, she survived. She would go on to win two silver medals for Team GB at the 1998 World Swimming Championships in New Zealand. From the ashes of suffering, he rose — not just healed, but transformed. Returning to the very hospital that once sealed his fate, he became a senior cancer nurse specialist, guiding others through the same darkness he had once known. Now, fifty-one years on, he is one of the world's longest-living cancer survivors. His journey stretches from the thundering stages of rock festivals to the sacred lands of the Lakota Sioux Nation — from despair to healing — in a memoir that pulses with courage, compassion, and quiet triumph. “Shadow of a Survivor,” by John Walker Pattison, is more than an award-winning memoir. It’s a lifeline — a testament to resilience, to love, and to the fierce strength that can rise from suffering. www.johnwpattison.co.uk

Apparently, one of the most recent scams involves other authors (allegedly) contacting authors and asking about their writing journey. They then go to Amazon and criticise your sales before suggesting they have a friend who made them thousands of sales. They then offer to give your details to this third person to promote your book. It's pathetic...