Any writer abhors plagiarism. I hate to see quotes without proper attribution or sentences and phrases copied verbatim from another source without any effort at attribution. I’d heard about significant plagiarism by big name authors. But I didn’t realize plagiarists often steal someone else’s entire novel, revamp it a bit and sell it as their own work.
Here’s a report on a current case that’s going to court. The victimized author asks supporters not to resort to online name-calling or bullying, but rather leave it in the hands of the judicial system. Supporters can help her by contributing to her “Go Fund Me” campaign to raise attorney fees.
Sadly, most authors cannot afford the expense involved in fighting plagiarism. This is why it happens so frequently and why people get by with it.