How about instead of the compassionate solution, we go with the rational solution? Which would be for the author to actually process the criticism they are receiving regarding their lack of transparency, and to either explain how they plan on improving, or to manage expectations for the future.
Instead of responding emotionally ("All these complaints are hurting my feelings! If you don't like it, you can stop giving me money!"), they could try responding rationally ("Unfortunately I was not able to meet the update schedule I had previously provided. I will not be able to provide any ETAs for the foreseeable future.").
Anyone that has ever worked with deadlines should understand that it really is that simple sometimes.