[threatofrain]

That site argues that carousels should basically never be used, but personally I hate the design constraints and resulting UX of refresh on hitting bottom of screen (the alternative to carousels).

Something to look at how airbnb uses carousels when showing a listings. There are many listings and you're not necessarily interested enough to click yet, and there's a cognitive cost to leaving and re-entering the search experience, so you can either have a modal or allow a carousel. The carousel is the halfway point between interested enough to investigate further but not interested enough to step into a new visual scene and step back out into the search experience.