Hold off on quitting for now.  I looked at the evidence and it doesn't look all that convincing to me.  Most T&C writing sounds very much the same, and even if they did copy it it was probably their legal team that did it (if they have one).  PR writing for rock bands and movie stars follows the same pattern:  "It is with a heavy heart that we announce the passing of X.  We ask for privacy while we mourn the passing of our friend". 

Sadly, people come here to advertise for money.  It's only wrong when you have nothing to say but insist on saying something anyway, and in a language you have no proficiency in.  That's when bitcointalk as a whole starts to suffer.  There's nothing inherently wrong with signature campaigns.