Some great examples there though!

It’s really bad when they nest them, as in the walking stick thing: “walking stick” becomes an adjective modifying the noun “pair” and the whole phrasal noun itself becomes an adjective modifying “pair”. Sometimes they verge on just being a list of varyingly relevant words. I fully expect one day soon to see a headline like “Lorry GCSE girl crash death”. Why they don’t know words like “canoeist” or “murderers” is a mystery (“murderers” being one of the very few nouns that can be legitimately modified by another noun).

The real problem is when one or more of the nouns is homonymous with a verb — people tend to expect a verb in a sentence and read it as such, “police rape claim woman in court” being the most famous example, although I once saw “Party murders appeal ruling due” and had no idea at all what the hell it meant.