Because of the rule of...
...meant people moaning about scammers previously had their threads deleted/locked.
Swings and roundabouts, people always moaning about people makes the scene look bad, it being covered up lets it carry on. Some stuff claimed by people may be unfounded so it's bad to be posted, but if nothing is posted things never get found out. From the view of the 'scene' I guess you damned if you do, damned it you don't.
I remember many years ago (maybe 10 now) me and a few others happened across the accounts of a certain VERY big owners club (so one that organised numerous big shows and events at big tracks up and down the UK every year). Despite their claims it was totally non profit and all payments were used for making the club what it was, the accounts shown that they (which accounted for literally a few people) were spending upwards of 30k a year of the clubs money on 'Travel and Accomodation'. So they were blatantly going on holiday etc at others expenses.
That all got covered up and deleted IIRC I was banned for life.
Swings and roundabouts once more, people don't wanna be ripped off, but if they knew the consequences are the big 'scene' that revolved around this club would fall apart, and it was literally thousands of peoples hobbies (or indeed whole lives) at the time.