The New Pages Feed currently allows pages to be filtered by the username of the creator. For reviewed articles, filtering by the username of the user who reviewed it has also been requested. This would primarily be useful for administrators who patrol reviewing and autopatrolled creations.
This seems largely resolved: We have a [https://en.wikipedia.org/w/index.php?title=Special:Log&type=pagetriage-curation&user=Insertcleverphrasehere page curation log], and a [https://en.wikipedia.org/wiki/Special:Log?type=patrol&user=Insertcleverphrasehere&page=&wpdate=&tagfilter= patrol log] which can both be specified by user. Links at [[Wikipedia:Database reports/Top new article reviewers]] lead to both for pretty much everyone, so it is pretty easy to patrol the patrollers from there.