I know the post you're referring to. Don't think that this is it but it could be a decent rabbit hole to fall down Https://sociable.co/. Source: about 1 year ago

If you dig into some of the articles on the website, it talks about Vaccine Passports being used as the foundation of our digital identities which will lead to a social credit system like China and the "Internet of Bodies (IoB)" which will use biometric implants to aggressively subdue a freethinking society, etc.... Which, maybe its plausible in some form or fashion, but it sounds more like a Black Mirror episode... Source: about 2 years ago

Hey HN! I am asking out of genuine curiosity, and perhaps doing a little market research. My team uses https://www.donut.com/ and https://officevibe.com/ but I'm pretty sure we're on the free tier for both. Do you work in a team that pays monthly for any cool Slack apps or integrations? Which ones? If you're not the one paying, do you find it useful - or annoying? Cheers! - Source: Hacker News / over 1 year ago

Officevibe, which is an employee experience platform, regularly sends out Slack notifications on behalf of their customers asking employees to complete a brief survey. Their engineering team utilizes the Automations API to create lists of users for whom the Slack survey could not be delivered and send them an email survey instead. - Source: dev.to / about 2 years ago