I haven't down voted them but I was strongly inclined to do so.

It's an argumentative comment that adds nothing to the conversation. Of course we should protect vulnerable people, but we actually already do do that. At some point someone has to take responsibility for their own susceptibility to manipulation, such as recognise you can no longer make sound financial decisions and give power of attorney to someone else. Otherwise it is their fault they're getting manipulated.

Just because of victim is over the age of 40 doesn't mean that they're mentally infeebled. This attitude ignores the underlying issue which is that quite a lot of people are just quite stupid.