That means Your government is smarter, than the average. Yes, BTC is a scam, financial scheme. Hardware has nothing to do with BTC being legit or not. Even KairosPlanet had their own "storage boxes", although it was a clear ponzi and pyramid.
Than what has to do with it not being legit? I mean, you clearly are against it, so if the points given by people on this forum don't satisfy you, share what ponzi scheme features does BTC have. I'm curious whether you can prove your point or are just another troll.
OP, your government is well known for being a bunch of manipulating liars. I read how they paid youtubers to spread lies about cryptocurrencies and later imposed a 1% tax on every crypto transaction, which basically made it the worst country in the world when it comes to crypto taxation.
https://www.reddit.com/r/ethereum/comments/7y88xz/polands_central_bank_secretly_paid_youtubers_to/Never said BTC was ponzi, I said Kairos was. BTC is different monetary scheme, with strong elements of pyramid. There are several ways to prove BTC is a fraud, the simplest to understand is the mining part.
Critically important: mining is the backbone of BTC product right? Miners do validating and keeping history of transactions right? They get a chance to be awarded with coin in return, right? But release rate of coins is diminishing in exponential rate. That could be possible, et number of transactions dropped in such a pace too, but that is not the case. If BTC was healthy product, the need for calculations would rise over period of time, not shrink!! Now, absence of real product is a clear sign or scheme.
If You leave aside speculative exchange rate, then people who invest money into mining, get less and less in return, while first few miners got HUGE benefit from fast release of many coins.
https://en.bitcoin.it/wiki/File:Controlled_supply-block_reward_halving.png This is a clear monetary pyramid, just people dont buy in with money directly, but via electricity.
https://en.bitcoin.it/wiki/File:Controlled_supply-supply_over_block_height.png And this clearly shows, how mining, or in other words, validating transactions, get mathematically meaningless in near future.
So You are all speculating on scheme, there is no viable real product behind.