Not sure if serious. I've dealt with the guy personally and while he's always willing to sell parts at a good price, I'd never have work done by him, because of his reputation for stealing parts and doing shitty work.
I Can't say for sure they all are, that was just my experience. They had to special order an actual Timken bearing for me, and claimed it was some sort of mix up to cover their asses.
Timkin bearings are fine if you get them from a reputable source. I had purchased "timkin" bearings from autozone that were their duralast brand in a timkin box. This could be avoided by asking to compare to the store brand parts though, or ordering from rockauto.
Because they are seriously debating about changing the name of this thread to "Das Borgen's copypasta funhouse: Negro B Sad Diaries"
before anyone claims racism, Read Das Borgen's name backwards.