Would it be possible and make sense to have the build service send mails
only
a) on failure
b) to the committer(s)?
The Zuul state is hinted on the webpage anyway and nobody is really
interested in "yes, builds as expected" mails and if it doesn't build, that
would mostly concern the author. If one has trouble to resolve build
issues, one can still ask explicitly.
In addition, it seems reasonable to me to mail out changes only after
they've been successfully built.
(I also do ask because of what would happen if gerrit became the KDE tool
and the following GSoC occurs - I recall to have written "this will not
even build" a couple of times ;-)
Cheers,
Thomas