Arthur, could we keep a growing list of known error-set identifiers in
the SRFI's repo? The list could also go into a file in
<https://github.com/srfi-explorations/identifiers> which hosts the list
of Scheme implementation ID's I've been collecting based on the
cond-expand identifiers used by each implementation.
Harold is brainstorming a plan for that. I've just asked that I not be put in the position of being a bottleneck, e.g. that I not need to merge every pull request. So it might be better to have a link to an external repo that you all control. But Harold is planning to make a proposal.