Lot of these accounts are newbies just starting out so I hate this to be one of their first dealings with the forum.
Lots of these accounts are newbies because they are sock-puppets of existing members who don't want to risk getting their main account's trust torched for supporting and collaborating/colluding with ponzi operators.
Where a user promptly removes their supporting posts the rating is removed also and in most cases they stop posting in ponzi threads. It doesn't actually prevent anybody from doing anything, by the way, it simply adds a degree of consequence to their decision to support scams.
A ponzi *has* to be sufficiently promoted to draw in new victims in order to pay existing 'customers'. Legitimate investment sites do not.