i think it's important to protect new cryptocurrency fans on some information like dead and inactive coins as every day new coins are pumping into blockchain market.
here this link will help you identify many dean and inactive coins, so you can avoid being losing your funds
https://deadcoins.com and anyone you have more to be added can let us know.
Most of these are airdrop coins thanks for posting this we really need something like this for the community, hope you can update it regularly because there are many more to come in the future with so many airdrop and fraud ICO are coming in the market.