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Reddit enrages users again by ditching thank-you coins and awards
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
Honestly I wouldn't want anything baked into the protocol, but I can see people donating small amounts to the instance hosting a worthy comment if there was a simple enough way to do it.
Cryptocurrencies were supposed to enable that, but I think we are still a long way away (no, lighting does not qualify).