With PH there are some similarities (both are product feeds after all), but substantial differences in the feed mechanics and results. Siftery's ranking is based on recommendations coming from verified business users and the products listed all have business use cases. Products also have a persistent identity (i.e. a new one is not created each time a product is created).

Ultimately, the are different products at the top of each feed, as would be expected from their different use cases and different (if to some degree overlapping) audiences.

We think Siftery Trending is a place where b2b products can go after launching and "graduating" from a community like Product Hunt. One way we're thinking about it is that Product Hunt is to high school what Siftery Trending is to college. There's a time and place for both!

That's my take, but additional thoughts/feedback appreciated.