- URLs not being clickable or selectable in many contexts for no good reason
- icon positions/sizes being off by a pixel between different pages
- if you're typing a message in their mobile app, and the text input field loses focus for whatever reason, everything you typed in so far is erased (this was true a few years ago and I essentially "rage-quit" the LinkedIn app after that)
... that I am absolutely convinced that their technology stack is a Frankenstein's monster of different chunks of code and logic, with a similar-enough skin on the outside for all of the parts to fool the managers (both inside and outside LinkedIn) into believing the website works.
(I know, I know: in a way all software projects relying on other libraries are Frankensteins, but you know what I'm talking about here: the parts don't even fit together properly)
These kinds of "ignores its own rules" bits fits perfectly with that.
I really wonder what the internal culture of that company is. I bet there's a lot of turnover, leading to this mess.