Lopez, the terms of your tourist state very clearly "Employment Prohibited", but if that definition falls into a grey area, then out of an abundance of caution perhaps the visa holder should not do it. Just because some allege online that they still do this type of work without any problems, does not mean it is without risk and the consequences if caught. Measure the Risk VS Reward. If you are truly a digital nomad, perhaps you should give thought to
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Whatever you decide I wish you luck!