Let's use Verge as an example:

Verge was always a scam, and here's some dirt:

"Believe me or not I don't care but be warned.

According to ex VP of marketing for Verge, Sunerok (only developer on Verge) hasn't communicated with his Verge team in 2 months and the entire marketing team (which was basically the entire rest of the team) quit the project. He even claims Sunerok never intended on releasing Wraith.

This will go down as the largest pump and dump in crypto history.

Don't say you weren't warned.

PROOF

Original post that was deleted: https://imgur.com/a/P5ycG

Look at comment from Kieran Daniels. He was VP of marketing for Verge.

More proof: https://medium.com/verge-currency-xvg/meet-the-core-team-our-future-vision-and-an-important-announcement-3965730bd0b8

Edit: There has been some confusion. I am not Twitter guy who deleted post. It appears someone deleted Kieran's Facebook post though so I have attached screenshot. I would also like to say I have not nor ever will invest in XVG. I have no financial incentive to divulge this information, I just saw an obvious scam and thought people should be warned."

(The above was stolen from Reddit user: fireguy7)

Now, a good way to tell if a coin is a scam going forward, is to see whether or not it is the darling coin of the week over in the Cryptocurrency sub-Reddit.

Another surefire way to tell if a coin or token is a scam or not, is to see if Trevon James is promoting it, if Data Dash is promoting it, if Suppoman is promoting it, if Crypto Investor is promoting it, and especially if John McAfee or Tai Lopez is promoting it!

If so, the coin or token in question, is most definitely a scam!

You've been warned, and good luck mates!