Originally donations to matrix.org foundation were supposed to be used to fund matrix protocol work and to hire a developer. This is still listed as a goal (that was reached) on Patreon. Only due to asking I found out that this never happened and donations are used to pay matrix.org homeserver instead, which of course is also a good cause, but should be communicated transparently.
I don't mind the accounts specifically, I just think that making them public is the easiest way to fulfill the needs of transparency. Of course a summary on the website, a blog post with explanations, etc, would also be nice, but I understand those mean extra work and there might be more important things the prioritize.
The bigger issue is that Matrix is not world leading.
Let Matthew decide priority on how to achieve that. Dealing with this post would be a distraction.