Hi,
Starting with at least v2.15 Gerrit is able to differentiate bot comments and hide them using 'Show comments' trigger on web UI. This is achived either using tagged comments or robot comments.
A while ago I filed an issue about Zuul not using these technics [1] (ticket has links for Gerrit docs with tagged and robot comments). This results that Zuul comments are not hiddable in Gerrit.
AFAIK, sending tagged comments via SSH to Gerrit is easy (one-line of code at [2]).
I could try providing a patch for tagged comments.
What Zuul maintainers think about adding support for bot comments?
Should not be sending tagged comments done only if Gerrit version >= 2.15?