I think the OP makes a fair point. When I search for new WGs in my normal hunting grounds, a lot more of them will have negative reviews than positive, say compared to 2-3 years ago. But I suspect that also has to do with the fact that the UKP community has grown, and so have the number of reviews.
What I still find baffling is how many unforced errors Sergei or the WGs will make. I will now screen all new punts by stating specifically which services from their likes list I am looking for and 7 times out of 10 they will charge ludicrous extras for simple things (£30 for DFK or £50 for OWO) or deny they offer a specific service, when it is on their profile.
YMMV is such an important caveat to even some of the more positive reviews though, especially in relation to a WGs looks, as I've written reviews in the past where I thought a WG was stunning and most punters here have disagreed, and had the opposite experience too.
One thing I certainly miss is decent TOFFT opportunities appearing in West London, as that has always been one of the more enjoyable parts of punting and being on here. The issue is that UKP has made me a lot more discerning about spotting bullshit artists, and so I haven't found a decent opportunity like this in some time. Anyway, these things seem to change in waves, and I'm sure there must be a new generation of great WGs just around the corner.