Questions of the day:

Zebracoin is just another pump and dump ? or it's one of those rare altcoin that you need to hold ?

What do you think folks ?

Wanna know what is the 1st secret feature of Zebracoin ?

REWRITTEN top bit and NEW LOGO - just cos i felt bad for the dev
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You would have to write down exactly what you meant by “proof”, showing positive and negative examples, otherwise you're setting up a condition that's impossible to verify.

After you finished, you'd have to do it all over again, this time for “sufficient”.

The list is the OP's purely personal take on altcoins; the criteria are subjective and inconsistently applied. In the absence of a more rigorous attempt to provide definitions, it can only ever be a personal list of dislikes, posted to stimulate some discussion. To attempt to subject it to more exacting requirements would be a mistake, the list is simply not up to the job.

Please don’t mistake my intention: it's a nice list and I’m sure many people also find it instructive but the content is the result of purely personal opinion and cannot be taken to be “proof” of anything.

Starter for 10: produce a definition of "scamcoin" to a standard such that we would both produce the same list if we made our choices independently but strictly according to the definition.

It is an impossible task, so I could've made it “starter for 10 thou” and I'd still be safe. But the take-home message is the old, old saw: “One man’s meat is another’s poison” --- the best working (and, yes, personal) definition of scamcoin that I've managed to come up with so far is: “appeals to those interested in a high risk/reward ratio”. At least it acts to point me to the potentially fruitful area of applying risk assessment techniques to illuminate the playing field better.

Cheers,

Graham