I'm going to agree to disagree with you here. 9 times out 10 it's irrelevant anyway. The lighties in the circuit don't care, and any other inbound IFR traffic will know about us because of the service provided by ATC. The only exception of course is when Renurpp is inbound from FL370. If we need to arrange separation then we'll talk it through on the CTAF or the Friendly ATCers might step in prior to us getting a clearance with a heading to fly etc.
Why I'm even explaining this I don't know
Simply put, it's in the manual. No one has ever challenged it, because it's never been an issue apart from a select few on Pprune. Like I said, if it annoys you that much, use your democratic right to complain to Qlink management.
As for the "caution wake turbulence" being in the manual, NO it's not. I personally have never used it, nor have I heard it used either. But I would not hesitate to use it if I thought it was warranted just like others have already said.