I feel like Tamer would be offended that this is the only detail you offer about him...
I can't tell if you are joking or not lol, would this genuinely be a reasonable sentence or would it be strange as it would be in English?
Well, by now we are supposed to get used to Duolingo's sense of "humor" I guess.
Not really but here calling someone rich is not really offending. Though some people might fear envy actually rather than feel insulted (if being rich is true anyway)