I've been using a simple uBlock Origin filter, and it works OK only. LinkedIn work very hard to stop people scraping, which means they regularly seem to shift the structure of their layout, and descriptors are weird. If this guy did a regularly-updated FF extension, I'd probably preferentially install that.

Agreed. I don't have adblockers installed atm, so used this as an opportunity to experiment with a smaller extension. Good to know for the future though, thank you!