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Yes its completely ok to create something like this, people have plenty of live stream donation service bots, so it wouldnt be THAT difficult to do... you would send this account hive with your cashapp tag in the memo, and a cashapp account using an API and a bot would send your cashapp tag in the memo an amount of cashapp, with the minimum being $1 and im sure the service would need to charge 5 to 10% fees to be profitable.
This idea also works well for crypto.com where anyone can set up a cryptocomhive wallet and have people send them hive with their crypto.com username in the memo, and the bot sends their crypto.com wallet fiat transfers
Thre is already a big crypto to cashapp community here on https://cryptolocally.com which if still running (I see that its not, but it had cashapp) had eos and telos but wouldnt add hive. But we could have our own service that allows hive users and cashapp users to be matched up with escrow to exchange hive / hbd for cashapp fiat.
Too bad this site isnt up anymore, because it had an example of how you could do crypto to cashapp trades.
#localaltcoins was an old idea of mine, i wonder why no one on hive has done this yet. going from hive to cashapp would be incredibly useful to be able to cashout hive or better yet hbd.