https://www.tonymacx86.com/threads/guide-high-sierra-on-hp-s...
https://www.vice.com/en_us/article/8xznw4/how-to-make-a-hack...
But yeah... not easily enough that many consumers would consider doing it over directly buying a mac.
How long they tolerate it is another question, and I don't think anyone knows for sure. But if hackintoshing becomes easier (imagine a one click installer on a Dell/HP/ASUS PC), I'd imagine they'd start pursuing people.
I think there was also an individual/company that would build PCs, install MacOS, and sell them for a profit. IIRC, they were shut down.