Call it incompetence if you want, but there's a certain flavor of evil incompetence here.
There might be a thin guise of "security" (i.e. email isn't a secure place to send your top-secret inbound message) but I'm inclined to suspect the main motivation is to drive people back to the platform and drive up their stickiness metrics.
It's user-hostile.
Some other silly shit that come to mind - having the unsubscribe link after half/full page of white space, once you click on unsubscribe "give us 24 to 48 hours to remove your email" etc. Really? they need 24 hours to delete (or change a flag) in the database?
I'm sure in A/B tests it increased engagement...
His book is also staggering insight into how little ability he has an executive and investor (some of the stuff is intern-level mistakes, like maybe juniors who are in their first week and got the job because of daddy...but even then...rare).
I know it's Hacker News and it's easy to criticize LinkedIn for shady growth practices and get praise for it. They often deserve it, but assigning malicious/growth intent for every change they make is misguided.
Fixed by switching to firefox and blocking redirects.
The security excuse is used as a way to increase conversion.
Give it a few weeks and people will start posting articles about how it happens on PC / Mac platforms too.
Though some apps I trust more with how they use the clipboard data or only restrict it to certain types, eg: image data for a photo viewer, urls for a browser, tracking code for a delivery app