Remember that this forum has lots of traffic from people who are not even a member in this forum. Supposing that they are curious about a certain project, they can utilize the search bar function and search the said ponzi project. If they happen to see that someone reported it, it would definitely help them avoid investing into it.
That is why, I find posts like these useful not only to veteran members but also to newbies as well. In addition, all of us started as newbies and seeing projects that offer high returns can trick us.
With more threads about catching ponzi schemes but we at least those who already know will report the site so it will be deactivated soon maybe that's to be expected.