I guess that he is offering you a custom text of 500 words for 0.7mbtc (19 USD). What I'm curious about is what kind of topics is he able to write about, or if he uses ChatGPT to offer his services. In any case, I think that these are very important points that should be clarified in the OP if he wants to make sincere deals. The average price for professional translations, for instance, is 8 cents per word, and I find it surprising that RainingSage is willing to write good quality original content for less than half of the price of simply translating.