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you can use it in place of goodbye, but you would be using it with different meaning. this is illustrated by the fact that there are certain situations in which

you can use it in place of goodbye, but you would be using it with different meaning. this is illustrated by the fact that there are certain situations in which you would never end an interaction with "thanks", but you might "goodbye". for example ending a call with a lover

Chris2048 1y ago
But that's maybe it's more casual, not because its semantically/logically incorrect. I wouldn't say its incorrect though.