Useless is perhaps a but harsh. It tells you something.

spott a day ago | parent | next [-]

Only if you know the data distribution.

It is pretty easy to get 99.99% accuracy on a dataset that is 99.99% a single class for example.

dymk a day ago | parent | prev [-]

It tells me nothing because it doesn’t say if they mean precision or recall

	▲	LPisGood a day ago \| parent [-]
		It very much tells you something. Accuracy is a measure of overall correctness. Accuracy is something different than precision and recall.