read.cash is a platform where you could earn money (total earned by users so far: $ 295,355.90). You could get tips for writing articles and comments, which are paid in Bitcoin Cash (BCH) cryptocurrency, which can be spent on the Internet or converted to your local money.
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I think at random rewarder was changed by the dev. Maybe crypto content succeed more or your not adding your post to the right community, change your community when writing a new post and see the results it might be in a community that gets Lowe chance of upvote by the random bot.