Yeah, there is no need for "final solution" style accountability here. This was a project that a single developer was working on when the stars just happened to align and drive a lot of attention to it at once. A commercially oriented website in the same situation would struggle to deal with it and be forced to take out loans in order to expand staffing and infrastructure capacity.
The phrasing of Ernest's initial post suggests that there is at least one exploitable vulnerability that spammers are taking advantage of and can't be openly discussed until the gates are closed. I understand the frustration and optics problem that comes with "easy and important fixes" sliding on the schedule (i.e. the topic of the other thread), but look at it this way:
Ernest is too slammed with work to be consciously creating more work for himself.
He needs the spam and bot problem to go away so ASAP so that it stops taking time away from him. This includes the missing moderation tools, spam/bot campaigns that are operating at a scale that those additional tools would have difficulty addressing regardless, and the issues he can't talk about yet that were hinted at above.
If he is waiting to push out a fix to problems that would greatly reduce his workload, there are very good reasons for it.
If he is not able to push out fixes that reduce his workload, it stands to reason that fixes unrelated to them are also sliding.