When I see connections are wasting time playing LinkedIn puzzles I'm just embarrassed for them. Although I half expect it's just made up for engagement like fake profiles on dating sites.
"A [recruiter you connected with 3 years ago in hopes of getting job opportunities, but never heard from ever again] reacted to a post by [a person you've never heard of before]: What taking a long shit while my wife was screaming at my kids taught me about b2b sales.
Switching the feed setting from the default algorithmic curated one to chronological improves a lot. And unsubscribe people liking the kind of post you're mocking, too.
Good luck actually unsubscribing from LinkedIn emails. The dark pattern they employ (or at least used to employ, for many many years) is to just periodically add new "categories" of email to send you, that you haven't yet unsubscribed from. Back in ~2015, out of frustration I changed my LinkedIn email to a throwaway
This would be illegal in the EU + UK, and certainly doesn't work like that in the UK. Potentially LinkedIn only made that change based on jurisdiction so maybe you two live in different places?