, same here. Probably because ...
- many editors just want +1's/shares, even if fooling people
- many editors just don't read comments on their posts
- most readers don't read previous comments*
- many readers just believe what they read whichever the source
- many readers prefer to ask than to research
* The G+ interface doesn't really encourage that: only the last couple comments are shown by default, and scrolling is awful in the mobile/tablet app