Firstly Op when you say blacklist what are you referring to? Are referring to coins that you would never attempt to transact with? If so I think coins that will fit into someones blacklist categories are pump and dump coins and tokens except of course the person in question Works with pump and dump coins. Fact is to just be careful on the kind of coins you placed your investment in .
One has to do proper research to prevent making the errors of investing in a coin that would dump sooner. Infact I wouldn't advise anyone to place their investments on altcoins because a majority of them are way too volatile and don't have a proper store for value.
I agree, there is no explanation from the OP what he means, but I probably think that he means that there would be no thought about having any actions done with this coin in the list
New alts and shitcoins can be real volatile nightmares you are talking about, but what about the big guys? They are here to stay, in my opinion and will bounce back even if the times are harsh, that would be a matter of time.
