It's hard to puncture those myths when you have official stuff, such as the New Zullund CAA publishing their Good Aviation Practices (GAP) books (available as a PDF from the NZ CAA website) which says on page 15:
"on approach, VRS can be minimised by keeping the rate of descent less than 300' per minute when IAS is less than 30 kts."
Straight from the horse's arse...