I can actually answer this. The training data went through a team of grammarly writing experts before being fed to the AI. Writing experts would get short snippets out of context, often from publicly available text (e.g., reddit comments, classic novels, poems, scientific papers) and correct it for both grammar and clarity, then that would then become training data. Later on the team would do the same for content generated by the AI.

Source: Was one of the writing experts. For a couple of weeks I was correcting snippets that were very very obviously from r/squaredcircle

Also it’s really easy to make friends while bouldering, especially if you find another group of people with the same skill level. Working problems together is great fun, but you still get to try the problem on your own.

Also fit climber men and women tend to be stupidly hot.