What we can do is to create a "scam report" for each new altcoin.

A list of criteria to rate and classify a new coin with a scam probability rate.

Something like:
- is dev anonymous?
- new bitcointalk account (like "coiname-dev")
- premine impact
- premine address public?
- feature promises without proof of skills/description (like "Anon will be implemented in 10 days")
- copy coin?
- open/closed source
- and more...


This will help to detect possible scams.
Honest devs will address each point, if community demands that.