[TeMPOraL]

Which only goes to show that recommendation systems need to be separated from the vendors whose wares are being recommended. There's a huge conflict of interest here - so of course recommendations will be biased towards what the platform makes most money on. This applies not just to Netflix, but also YouTube.

As it is, these systems are just in-house banner ads in disguise, and as trustworthy as any other ad.

For a recommendation system to work in the interest of its users, its profits would have to be completely uncorrelated to the recommendations it gives. In a more sane world, platforms would have to accept such third-party recommendation systems as first-class citizens, to be used in lieu of whatever the platform offers.