At this very moment, someone on this forum could be reading one of his self-moderated threads, full of positive feedback from his alternate forums profiles and decide to invest in one of the coins listed on VaultMex.
That's true, but it is very difficult to help people who don't help themselves at least a little bit.
Should your scenario indicate the depth of due diligence that the theoretical investor thinks adequate, then unfortunately it will only be a matter of time before he gets scammed somewhere along the line.
Search VaultMex in the forum search and critical threads are listed, search VaultMex in Google and "Scam Exchange VaultMeX!" is on this first page.
Involving moderators in any but the simplest value judgments is not practical or, to some, desirable.