Here you can find information how to avoid fake (scam) airdrops and bounties campaigns and a link of a post with list sites that publish daily airdrops and bounties and other sites with opportunities to earn from investments .
There are some crypto exchanges that offer free coins but which will require you to check KYC at registration and here's what you should be careful
Look at the total token supply;
Try to see if there is any company behind;
Grammar mistakes shouldn't exist on their website;
Try to see if the team is real;
Take a look at roadmap ;
When accessing the web page, check if the security lock is present or the https termination is activated ;
You can check what kind of license that exchange has (you can see https://www.cryptocompare.com/exchanges#/overview or https://www.cryptowisser.com/exchanges/ ) ;
Each cryptocurrency represents a form of business, attracting investments . Airdrop and bounty campaigns are designed to increase the number of buyers customers (investors) and accelerate currency exchange on cryptocurrency exchanges . The more crypto currency or business is legal, the more customers have to win and the less legal the more clients have to lose. Some choose to list their currency on large exchanges with large volumes of transactions (you can see some fees on https://coin360.com/news/exchanges-listing-fees-an-overview ) , others on DEX (decentralized exchange but here price is too high or too small , high fees ) ; on your own site with only the number of a worthless coin or via selfdrop ( mean to send some ETH or BTC to get shitcoins) In the case of the last 3 methods some increase the value of the coin in a few weeks and decrease it abruptly in a few hours like pump and dump (see more information on sites https://coinrivet.com/guides/what-are-cryptocurrency-security-issues/what-is-a-pump-and-dump-crypto-scheme/ ; https://www.newsbtc.com/2019/12/10/matic-crypto-pump-and-dump-reminder-of-how-dreams-can-turn-to-nightmares/ ; https://pumpdump.coincheckup.com/ ) they exchange large amounts through cryptocurrency exchange and disappear .
For this it is good to see the transparency of crypto currency transactions on site (https://nomics.com/ where can see Actively Traded / Inactive / Deadcoins / Not Priced and
https://deadcoins.com/ can see list deadcoins and scam )
And now I will offer you some tips related to aidrop and bounty
Watch out for phishing attacks ( how prevent visit sites https://www.keepnetlabs.com/crypto-phishing-techniques/
https://markshirecrypto.com/crypto-security/how-to-protect-against-cryptocurrency-phishing-attacks/ ) ;
Do not offer private wallet keys or passphrases
Do not install programs that may contain viruses and offer you free coins
Some can create fake airdrop campaigns by creating fake accounts (especially on the telegram) where they are changed by a letter or a number from the original official accounts of cryptocurrency developers ( best visit https://www.coingecko.com/ or https://coincodex.com/ and check official website , social accounts and smart contract ( Explorer ) and try contact them to ask if airdrop you found is legit or no .
Some may block the amounts of coins earned in airdrop in exchange for depositing money such as in euros, dollars or BTC, ETH or looking for referrals to deposit.Avoid these campaigns.
Some promise you to increase the value of cryptocurrency in a short time like the price of the dollar or gold or bitcoin , ethereum with the thought that it will make you buy. Better get rid of such actors .
On some google forms I noticed it offers a cryptocurrency worth 50 usd in exchange for subscribing to official sites plus such a task from another airdrop (to download BRAVE browser from the affiliate link that can bring them 7 usd ) How can they say the value of 50 usd if they want to earn from 7 usd from affiliation . In this case you can search for information from google with the name of the software .
About the offer of free cryptocurrencies by filling in the google forms. Some copy these forms and your data does not go where it should, so it is good to compare on 2 3 airdrop sites or the official cryptocurrency website that offers airdrop and look if the form has the same address. Also some airdrop sites add some extra tasks or show that the campaign is over but in reality it still continues.
Regarding the airdrops organized in the telegram, sometimes it does not work bot or they change the name, you can ask anything you are interested in airdrop (in group or channel) for example when the distribution of cryptocurrencies takes place or if need transfer fees . The administrator or moderator may block or rarely answer you because of your uncomfortable questions. I have also noticed that some administrators copy and distribute your discussion several times, although you have only posted once.
When you participate in airdrops you can consider how many participants are registered in the campaign (you can see on https://cocoricos.io/airdrops only you need to register) , which is the accumulated capital during the ico period ( https://icoholder.com/en/icos/ongoing ) if the distribution took place (https://www.airdroprating.io/feed/ or https://www.cryptoknowmics.com/airdrops-distribution ) .
Below you have a link to the post with active airdrops in which you can participate and earn money , in the second link is the post with the list of the best sites for airdrops and bounties , the third link is a site with multiple banners where you can invest your money (either currency or cryptocurrency) in various investment models to make money . I wish you much success!
those last links are broken