AFAIK, the NASI financial incentives have stopped. So don’t worry about that aspect. The problems that I see with this is that we are endorsing widespread manipulation of young people and their parents, and also allowing “believers” such as AZ and mox to look askew at any bochur who dates or marries someone 3 years younger. We are also casting fear into the hearts of skeptical (agnostic?) girls who don’t know whether or not to believe that they need to hitch any ride they can get off the “shidduch island”.
Logical argument with the “believers” does not help, as we have shown in this thread. They will continue spouting their talking points and inventing facts to anyone in earshot. They have good intentions, but I hear that good intentions are mainly used as pavers.