>>> A quick grep through source (by parameter names) showed that there are
>>> many places where (general) group parameters aren't honored, even if
>>> they should be.  Potentially this gives rise to a lot of bugs that
>>> seem unrelated.  Probably there are also more places where the full
>>> group specification is missing in using `gnus-group-find-parameter'.

> This seems much more serious to me.  I am considering helping to
> rectify this.  Please instruct me about signing the papers.

Thanks.  I sent a recipe to you.