Agreed.
Several people I introduced to alt cryptos got burned and will likely never be back.
Let natural selection take place
Natural selection will take place whether or not you "let it". That's by definition.
OP has an okay point, it is a good thing to see a community get stronger and wiser, but it's not a good thing to see people get hurt. Unfortunately, oftentimes people have to learn the hard way. There's a lot of discussion in meta these days about how the "scambusters" of default trust are actually causing more harm than good not only because of all the stuff they get wrong (false accusations and whatnot) but because the little green trust light offers a false sense of security to people who ought to be making decisions more critically.