Indeed, the article https://electrek.co/2017/01/19/chevy-bolt-ev-owner-claims-crashed-into-his-garage/ specifically refers to the thread http://www.mychevybolt.com/forum/viewtopic.php?f=11&t=5680 right on these forums.
So the thread here on these forums is the primary source, while the article on electrek.co is a secondary source.