I didn't read the whole article but from the first example it's not particular s...

		ig1 on April 25, 2014 \| parent \| context \| favorite \| on: SEO: 4 things huge sites are allowed to do but you... I didn't read the whole article but from the first example it's not particular strong. Google discourages widget back-links but that's far from considering it black-hat. There doesn't seem to be any evidence suggesting that Google treat widget back-links differently depending on who the widget is from.

It gets much stronger

EDIT: Though the vitriol does go off the rails a bit toward the end...