If you are really looking to find a scam, the elephant in the room is Dash.
The dev premined boatloads due to a 'mistake' and he didnt fix it because the community was cool with it

ETH premined
ALL the coins..
and OP asking people here in your title to be honest is clever.. they have to now !!!

I voted ETH for a bunch of factors but we got a big mess going on here.
The Ripple guys were laughed off this forum but later 6,000 coins copied the IPO centralization / distribution model
I could write a thick book on the top 10 LOL
The biggest scam here ?
You dumb fucking idiots for shoveling MILLIONS of dollars at all these shitty ass scam coins.
Like ? Doge coin Nascar paintjobs or MEW Monero funding for "Retro Virtual City" Forum topic games for "adoption"
Look in the mirror rather than pointing the finger crypto supporters hahahha
EDIT:
MemoryCoin was the scammiest coin i ever seen (the alpha version of Protoshares pretty much)
It was Mensa level scammy ..i was actually impressed ROFL