Comment by like_any_other

> Why isn't Ryanair allowed to prohibit use of their website by resellers?

To give a more general answer than the sibling comment, setting conditions on how a product may be used usually distorts the market, harms buyers, and reduces competition, naturally to the benefit of the one setting the conditions.

For example selling cars that you're not allowed to use for "professional" use, only personal (as Nvidia does with forbidding datacenter use of some of its GPUs, charging extra for it). There was also a self-driving company that forbade buyers from using their cars to create a taxi service, essentially reserving that market for themselves. It may have been Tesla, but I can't find the story right now. In general living in a world where we need manufacturer's permission to do anything is less than ideal.

In this case I'm sure Ryanair would like to spin it as resellers upcharging customers, but by complete coincidence, their practices also prevent someone knowledgeable in all their dark patterns from protecting customers from them by acting as an intermediary.