This is getting to be a regular occurrence:

Typically, every day two or three hundred visitors read three or four hundred posts, about 1.4 posts/viewer. Nearly 4000 views from the same number of visitors is unusual. The whole blog has just over 5200 posts; perhaps they don’t want really old content.
A look at the timing suggests what happened:

My guess: WordPress throttles aggressive scraping, so the program backed off for a couple of hours before finishing the job.
Long ago, a magazine editor told me I have the strongest writing voice he had ever encountered, so when an AI uses my blog as its training set the results should be obvious.
Let me know where else you meet me …