That is true for any source of information. It's true for even the highest quality newspapers. It's certainly true for other encyclopedias. It's even true for s

That is true for any source of information. It's true for even the highest quality newspapers. It's certainly true for other encyclopedias. It's even true for scientific papers. There's always something they're wrong about. The big question is whether there's a process to fix mistakes, and whether there are perverse incentives to spread incorrect information.