If the coin is traded on an exchange and decentralized exchanges, is it necessary to use TradingView to check it? I am not using TradingView, the only reason I wanted to use it before was alert but which I can get directly from the exchange I am using now, but I know there are some trading indicators alerts that people can use on TradingView, but why it is special than checking the airdrop coins on those exchanges directly where it is listed?
Precisely — people like using TradingView to be able to use indicators and stuff, and probably to compare charts on a single graph. Not sure why you'd want to use indicators on coins/tokens that are illiquid though.