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Taking those risk are part of his growth here since maybe for now he find gambling as good alternative but once he lost to much on it I believe he will go on different option to find what better things can give him a good income.
For @Mauser even if we don't get any dividends by holding our signature earnings still we can get a good profits if the price pumps, I know it's different scenario if the market collapsed but still we see how the market creates good profit to the holder so if you can hold for long term better select this option since sometimes
aiming to get money from gambling is really dangerous.It's not dangerous only in one case, when what you earn from sig campaigns is less then 10% of your monthly income with other jobs. I'm sure we have a good number of such people here on bitcointalk, people from USA and Western Europe, for whom their earnings from participating sig camps aren't that significant. But even for them it is better to hold those insignificant amounts, because today's $60 in BTC can turn into $1,000+ in the future.