[The issue]

I humble say a warm hello to everyone happening to read this post.

The issue
No doubt you've heard of recent advance fee schemes among crypto world: Elon Musk and SpaceX donating bitcoins from Youtube videos. Bill Gates organizing faucets on Twitter. Barack Obama doing so to help fight COVID and many many others. These were all scams organized by hackers who used the public figures of prominent individuals to gain trust. Almost all have trapped hundreds of people, as open ledger explorers proved, into thinking they'll get rich over night by sending some coins to random crypto addresses and receive x2, x5, x10 in return. Unfortunately similar ads and videos are still posted on social media and video distribution networks. Elon Musk scam faucet-campaign hasn't stopped, same as Vitalik's one and even if social media staff manages to take the posts down in mean time, scammers still manage to trap victims into sending funds to fraudulent addresses in exchange of illusory hopes of getting rich.

So what's to be done with it? We know bitcoin helps us all, the senders, remain anonymous in our payments. But that applies to our receivers as well! Can we trust our receivers? Satoshi said "We have proposed a system for electronic transactions without relying on trust." And I guess he meant it in every aspect.

Proposal
We can create a giant open source database containing all abusive addresses. This is what Crypto Scam Project is all about and it's core idea relies on the following sketch:

Let's assume three fictionary men: John Doe, Foo Bar, Baz Bar

 1. John Doe spots a scammy Youtube ad with a fraudulent BTC/ETH/XRM/etc.. address claiming to triple the amount of coins you send to it. He goes to https://crypto-scam.io/report and reports it.
 2. Foo Bar spots the ad as well but doesn't know it's an advance-fee scheme. He proceeds to send funds to the address.
 3. Before executing the order, the wallet software used by Foo Bar queries the database of https://crypto-scam.io to check if the receipt address is fraudulent. Because John Doe already reported it, Crypto Scam signals it, and wallet software halts the transaction initiated by Foo Bar preventing him from falling into the scam.
 4. Alternatively Baz Bar spots the ad as well but he's suspicious about it. He goes to https://crypto-scam.io/search and manually queries the database only to discover the address is fraudulent.

That simple. You spot an abusive address - you report it to this database. You attempt a transaction - the receipt is anonymously checked before execution.

Now you'll probably say: "An abuser can always create a new abusive address. How does this app help us?" It takes time for anyone to merge the new address into an ad, a post, an image, moreover into a video. Comparing the time it takes for hardcoding the new address with the time it takes to report it, we'll notice this mechanism is productive in terms of protection. If such system was online when Musk's twitter got hacked, much more people would've been protected, that's what I think. And such breaches will occur in future, I believe it's important to develop security mechanisms in such matter.

Conclusion
Crypto Scam is a non-profit, open source database of abusive crypto addresses, distributed under MIT. I am positive its service will soon be adopted by prominent wallet software to help prevent abuse in crypto ecosystem. I hope you will find this initiative useful.

Project Homepage: https://crypto-scam.io
Project source (Github): https://github.com/tgbv/crypto-scam

There are very few startups in this world that went perfect from the beginning. The more tests we make the more we'll know the system is reliable, so please if you spot an abusive crypto address don't hesitate to report it: https://crypto-scam.io/report
If you want to contribute, I'd be more than happy to have you on board. Feel free to open PRs or Issues in Github repo.