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Definitely an interesting question to consider. If bots are equal access by way of competing via bids, then one could argue its a pay-for-performance based model. The ones who can pay the best, or who can host a bot, accrue the benefits once again. The fact that bots are part of the ecosystem is in itself interesting because it doesn't necessarily need to be based on pay to play. @originalworks is one such project fishing out original works.