I’ve always thought the prompts on booking sites that tell you there are only 2 rooms left were annoying, but hadn’t considered them an accessibility issue until now. Good read, and there’s a second part coming too.

The web is awash with all manner of so-called dark patterns, designed to convert visitors and part them from their money. While such intrusions can be a source of irritation or even stress for many people, they may be complete showstoppers for people with anxiety or panic disorders.
— Read on developer.paciellogroup.com/blog/2018/08/a-web-of-anxiety-accessibility-for-people-with-anxiety-and-panic-disorders-part-1/