I don’t care about whether you agree or not. It will kill their SEO, that’s a fact. Unless they will implement canonical, which wouldn’t make much strategical sense since the plugin goes from Steem to WLS, they will toast.

Your argument forgets that all “thriving social media sites” already built large activity before crossposting happened.

It doesn’t matter, you give another spin to the topic. I focused on SEO and duplicate content is undeniable. Period.