Should I use a carousel?

I've been waiting and hoping for the anti-carousel movement to gain cultural traction among web developers for some time. The fact that this page has made it to the front page of HN gives me hope that momentum will begin to increase more rapidly now. Some people seem to think carousels are some sort of design cheat code, making it possible to include five pieces of content in the space of one. It's almost the front-end equivalent of a TODO…

Clever move to make the slide transition timeout juuust a tad too fast to read, further driving home the point that carousels are a shit way to present information.

I work at an ad agency and we have to send this link to people on a regular basis. We actually had a customer once who put 40 (!) carousel slides on the frontpage of his website and wondered why nobody is clicking through to the linked pages. When someone insists on carousels now, I tell them that it will also hurt website performance and therefore its ranking on Google. This shuts them up 99% percent of the time.

How many other user interactions are generally considered objectively bad practice? Sure, there may be a time and place, but what is frequently overused? Toasts: - https://maxschmitt.me/posts/toasts-bad-ux - https://youtu.be/LeCKu0HqGFQ?si=xKApVFSqdzLGF0SD Modals (being a special case of modes): - https://modalzmodalzmodalz.com/ Modes: - https://www.nngroup.com/articles/modes/ - https://ilyabirman.net/meanwhile/all/timed-modes/ What else?