It almost seems like this whole feature is designed to invite law suits.
Seems pretty likely usage of Grammarly's core product has cratered in the past few years. Not totally hard to imagine one of the big AI labs paying their legal fees in exchange for putting this out there and kick starting the legal process on some of these issues.
LLMs basically made Grammarly irrelevant as a product. Why have a tool to correct your grammar when you can just have it write the whole piece for you. And one things LLMs do well is construct grammatically correct text.
So IMO they are just flinging things at the wall trying to find a way back.
As Annie Duke said in her book Quit, "quitting on time usually feels like quitting too early." Grammarly was a great in the 2010s, but now it's too easily replaced.
It seems like there are many apps that can be run locally that use LLMs. Although I haven't used this, I found it on reddit and it's made by a student. https://github.com/theJayTea/WritingTools
Seems pretty likely usage of Grammarly's core product has cratered in the past few years. Not totally hard to imagine one of the big AI labs paying their legal fees in exchange for putting this out there and kick starting the legal process on some of these issues.