Why do owners of the token or coin start free airdrop campaigns ???

An airdrop is distribution of cryptocurrency tokens for coin free or sometimes by completing small tasks, liking their facebook page. like and share their tweets and make referrals for extra tokens. but the question is why do they start a free campaign of airdrops? what advantages the company gets through these airdrops? airdrops are free for consumers?? why companies give away millions of dollars?.

many people in this world don't care about these questions because the word "FREE" is enough for them. everyone wants to grab free stuff without knowing the reason why they are giving this stuff free to them.same situation in a crypto world nobody cares why company giving free tokens to them.

MARKETING PURPOSE

when new business starts or the same as a new token launched in a market there is always a separate budget for marketing. some owners decided to spend this money on advertising and some spend this money on airdrops. they didn't pay anything from their own pockets this is a budget of marketing. token teams do marketing to increase the awareness about their tokens and airdrop highly increases the number of token holders, which highly increases the liquidity of that token on the secondary market. more holders mean more buyers and sellers of the token. It also helps to catches the eyes of the cryptocurrency market and exchanges. 

SELLING COSTUMERS DATA

 many airdrops asked for identity verification. they asked you to submit your national id card photos and your selfie with a national identity card or passport photos. but why they asked for documents? Do they want these documents only for verification purposes? well, some companies want documents just for verification but many sell our data to other companies just for money. for example, you bought a shirt and registered your number there. after 2 hours you will start to receive sales offers for shirts from different outlets lol.​​​​

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