My guess, based on reading Tesla forums, is more that they have such poor QA that a lot of customers were 7-day returning vehicles that Tesla told them would take months just to get the parts/service for a brand-new vehicle (e.g. panel gaps, poor sealing, unknown rattling/noises, etc).

They're trying to "solve" their ongoing QA problems by removing a customer safety net rather than addressing the underlying cause. I'm sure their metrics could be used to show abuse, but really it is Tesla's own community creating things like their own QA checklists which people were encouraged to go through on the first 7 and return if an expedient fix wasn't available.

How does one take advantage of a "no questions asked" return policy? It's literally intended to give a customer confidence in the product they're buying as they can return it for _any_ reason. My assumption is that they overestimated their own product and saw far more returns than they had anticipated.

Or Tesla is taking advantage of buyers by putting out shoddy cars.