I never use Vivastreet directly and only use Aw with linked UKP reviews.
I am curious how many UKP members regularly use Viva street. I guess for the business model to work, someone does? 
A/W profiles numbers can last longer, than some other platforms. Also they can be Indexed
on UKP, making it easier to re-search, linked history (IMO).
I've seen some W/G profiles on, a number of different platforms. kommons - V/S - S/H - E/A etc
V/S profiles don't tend to last long, some have videos (that are free - no credits needed) and other info.