Which altcoins from the last few years where there was a lot of positive talk about it has failed?  And by failed, it means either it has went to 0 or it could be worth very little.  Like it could been 50 dollars at one point and now 0.50.



Also I am talking about coins that were at least in the top 50 or top 100 in coinmarketcap and then it just fell apart.  I don't mean a coin that came out and everyone had praise of it and it didn't even break the top 100 on coinmarketcap.