IMO as someone who frequents the mutual_aid community when I can, we should not be policing posters there with respect to how much they've received or how much they can ask for. A consequence of this being an anonymous online community is that there's no way to know whether someone is being honest, and that is something we should just accept. Others have said this, and I agree with it: if you want to know you're helping someone who needs it, join a local org.
Potentially a limit to the number of posts could be helpful. However, I understand why people desperate for help would make posts in a short period of time. I would leave that one to people in the comm who need help.
Meta posts calling out other users feels too much like a witch hunt and I believe it's unproductive (for the reasons mentioned in paragraph 1). I feel like mods should handle grievances like that if we choose to handle it at all.
Honestly disgusted by that thread and the wider chilling effect this already seems to have. I understand people want to feel like they're doing the most good possible, but that doesn't give anyone the right to dictate how aid gets spent. These are systemic problems that cannot be fixed by wiring someone cash.