I doubt anyone buying Paul components would think Ali is a place to legitimately buy from.
I do think that many cycling enthusiasts, especially ones who are attracted to stuff from King, Paul, etc will buy components 2nd hand.
So off of local FB, ebay private seller, local CL, internet sale/swap boards, etc.

Its that 2nd hand marketplace concern that seems like it would be tough to navigate.
I avoid it entirely by not buying $500 brakes, $800 hubsets, $150 cnc's stems, $250 headsets, etc. Can't get scammed off what you aren't willing to buy.