He has no taste anymore. He was right once, made too much money, and lost touch with everything. Now he's a tasteless boomer.

I would say he isn't what he once was, age will get us all. However 'has no taste anymore' is too far the other way AND 'tasteless boomer' is in itself a tasteless comment.

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Taste changes. Teslas now feel like janky, shoddily assembled, cheaply sourced ipad cases with wheels and a passenger compartment. Novelty wears off.

That's quite a coincidence, because marketing campaigns also change with time and wear off after a while.