Apparently there are people who did not get the miners and there are who did:
https://twitter.com/realcryptoplato/status/983507170875420672
https://twitter.com/nopara73/status/983513431016787975

It’s not a scam, because there are countless reports on that the hardware exists and being delivered. In order for this to be a scam the hardware shouldn’t even had to be built in the first place.
The selective delays raise different questions about Halong.

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