Supplementary explanation,
When everyone only uses blogs to get STEEM tokens,
Mostly distributed to the exchange,
In the end, it will only be a bad disaster.
So STEEM think to be strong,
Official must have recycling system.
So I came up with the concept of an official commemorative collection.
And the postcard or card is the easiest,
Low cost - low shipping costs - collectible.
It’s like the Japanese voyage king card - Comic fan card,
If office can do it like anti-counterfeiting function of the banknotes - of course it is best.
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