Do you think Airdrop is effective to promote ICO projects? I think No.
Certainly it may be useful to spread the name of the project, but will those people who know about the project with Airdrop invest in that coin?
I think that they only to sell the coin which earned by airdrop cheaply in the market and dump the price.
How do you think about this??
Marketing strategies are unique in themselves and there's no single best strategy out there, but a combination of them all gives the best result. There are times when some projects did not do any public sale, but just private sales. They instead give airdrops in form of bounties and also give airdrops to their private investors. A classic example of this strategy is UCHAIN.
Airdrops help to create more awareness about a project and make them more popular. The much touted notion that those who receive tokens from airdrops tend to drop them at the exchange and thereby cause in the price might be true, but also remember airdrops are usually a tiny percentage of the total supply. There's a set of token holders who tend to be ignored simply because they contributed financially to the project, and these are the private investors with huge bonuses without any lock-in period. These guys have been notorious for dumping their huge bonuses at the exchanges too, thus crashing the price of the tokens massively.
Spot on! The spot light is usually on the recipients of airdrops, who in my opinion receive a paltry amount of the entire token. Imagine tokens that worth a paltry $50 (exaggerated, because they worth even less nowadays), wondering how this will cause the price of the tokens to dump. A great project will do well at the exchanges regardless. I mean, DGTX is doing well in this bears market despite giving airdrops.