I had a website full of content that I couldn't take care of anymore, so I let the domain expire. When my domain expired, HealthDarts.com took the articles I had on my website and posted them on theirs like they owned them. I only found out recently because I was checking if anyone had stolen my content while my website was offline.
These people are posers and thieves. They're not medical experts like they want you to believe. The only thing they're good at is copying and pasting content from other websites.