Our capability of doing simple spellcheckers has maybe improved, but our standards have risen as well. Back then it might have been amazing, nowadays it's borin

Our capability of doing simple spellcheckers has maybe improved, but our standards have risen as well. Back then it might have been amazing, nowadays it's boring and every program has it, even my Firefox browser does. A spellchecker is only a limited solution to the task of proofreading. I've never used the grammarly product, but at least from the ads it seems it can catch many things that human proofreaders would catch. There might still be domain-specific things that requires humans. But the grammarly product has way more logic behind it than just using a simple table of words. No idea if it's parametric or uses an ML language model, or maybe a combination, but the feature set wouldn't be possible with just a table. So instead of a lone employee being tasked to write a spellcheker, you suddenly have an entire industry focused on NLP. That's how the growth of the computing industry looks like :).