what is the post with coinBTC

A post with a coin pair that includes #btc means the post is about a cryptocurrency trading pair that includes Bitcoin (BTC):

What is a crypto trading pair?

A crypto trading pair is a combination of two cryptocurrencies that can be traded against each other on a crypto exchange.

How do crypto trading pairs work?

Each pair shows the value of one crypto relative to another. For example, the trading pair BTC/ETH represents the exchange rate between Bitcoin (BTC) and Ethereum (ETH).

What are some examples of crypto trading pairs?

Some examples of crypto trading pairs include:

BTC/USDT: Bitcoin to Tether

ETH/USDT: Ethereum to Tether

BTC/ETH: Bitcoin to Ethereum

BTC/LTC: Bitcoin to Litecoin

ETH/BCH: Ether to Bitcoin Cash

BTC/USD: Bitcoin to U.S. dollars

ETH/USD: Ethereum to U.S. dollars

Traders typically buy cryptocurrencies when their value is low and sell when it peaks.