Side note: I hope they don't use Slack at work. I mean, it's saying something that Slack brands itself as business communication and probably a third of the actual facial reaction emojis in the default are some variant on smiling or laughing. Would they strip those out? Would they simply ban the use of reaction emojis but not tell anyone until after they'd reacted? Probably the latter. Ooops, you reacted to a Slack message with a smiley face - off to HR with you!