There’s a transaction fee, the higher you pay the more priority you have (since miners get a cut).

Not in this one, iirc they actually reverse engineered and were working off of apple libraries, rather than proxies.

As a Linux user (and ex arch user btw), I’m deeply offended.

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Problem is this assumes that everyone has to build their own captcha solver. It’s definitely a bare minimum standard barrier to entry, but it’s really not a sustainable solution to begin with.