Rack and pinion steering.

72bluNblu said
Swapping the spindles side to side doesn’t change anything other than the position of the brake caliper.

Swapping the lower ball joints puts the steering arm forward, but absolutely hammers the Ackerman for the steering geometry.

It’s been done on some drag only cars that have very little suspension travel, and in that setting it may be tolerable (but not good). On the the street it’s an accident waiting to happen.
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That's what I meant by saying "swapping the spindles is one thing..." Maybe I phrased it badly.
My meaning was that flipping the spindles may be common, but he should realize the same doesn't apply to the balljoint/steering arm.
Heck, now that I tried to find the thread I was thinking of, I found so many saying the same thing that OP should probably just run a search and then hunker down for an evening of reading.