btc reached 8k only because they are creating usdt each time the price drops. for example, today they just created 20 million usdt.

any major exchange should block the use of usdt.

explanation: https[Suspicious link removed]d/are-fraudulent-tethers-being-used-for-margin-lending-on-bitfinex-5de9dd80f330

easier explanation: https://hackernoon.com/meet-spoofy-how-a-single-entity-dominates-the-price-of-bitcoin-39c711d28eb4

quick image to understand: https://twitter.com/Federico_UASF/status/898202688269234176