Referring to Scambrain explosion allegation in the HBO movie, I find shitcoins useful in a sense that you can sybil shitcoin networks and get an airdrop, and then swap the shitcoins for BTC.
If you can do it, without any prepaid cost, it's good. You can do it with retroactive airdrop, do some tasks with testnets that are free, no cost, and get shitcoins. When you receive shitcoin distributions, you can convert them to Bitcoin. Sell them and buy bitcoin or swap them to bitcoin through cross chain bridges if possible.
The risk is you need to use a device for interactions with shitcoin's websites and smart contracts. Make sure you don't store any of your Bitcoin wallet on that device because if you do interactions with shitcoin projects, and let your device with Bitcoin wallet compromised, it's terrible practice.
Scambook.This is my first ever post on this forum, please don't ban immediately.
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I completely agree with the security concerns, I would only add that I would even refrain from storing even shitcoins on the airdrop hunting wallets / device, since the testnet interactions require visiting a lot of future scam DEXs and other scam projects.
As to the cost, unfortunately, it is not free and requires not only investment of time and money, but also a lot of effort. Yet, it is a good way for future bitcoiners to learn shitcoining business well, and make some BTC meanwhile.
Ie, in the end it is actually profitable if you're persistent and smart (yes, have to be smart not to always lose money). In essence, you're playing against the house and winning, so ... got to be smart.