I have written a post about my experience running a #Bitcoin testnet faucet for the last seven years. It is about how I have created countermeasures against people who try to spam the faucet with requests: https://kuttler.eu/en/post/detecting-fraudulent-activity-bitcoin-testnet-faucet/
It is proven! I am bjarnemagnussen on Keybase: https://keybase.io/bjarnemagnussen/sigchain#10813a2ef7317616906231c608f61c59a36aa91ab19dd273ebe9813ea02662820f
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