I don't see how it's possible to run a mutual aid comm with anonymous people scattered all over the world. Mutual aid really requires a much closer knit network of people working together in tangible non-monetary ways.
What we have is a charity comm. If we're going to run a charity comm some regulation would help.
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Limiting posts to one per week per account to stop the competition for visibility and subsequent blocking of the comm by people overwhelmed by the number of posts.
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Enforcing the use of something like GoFundMe so people can be confident when targets are or aren't met.
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Allowing people to provide suggestions for local support such as food banks or shelters: things that may reduce weekly repeats on the charity comm.
Regardless of moral judgements, donators need confidence in the system for the comm to provide help to anyone. Otherwise it's just a drama generator that fosters contempt and mistrust.