This is particularly bad in the moving industry. Not only are movers notorious for bribing customers to post good reviews but there are also several well ranking "Moving Specific" review sites that are completely fake. The industry also happens to have some of the most horrific scams...
The less frequently someone needs a given service, the more confusing (in the best case) and scammy (in the normal to worse case), the sales process is.
Look at weddings, funerals, residential remodels, residential HVAC, and the like as other examples. Some of those make used car sales look pleasant and transparent...
