Just noting that I use User:Writ Keeper/Scripts/deletionFinder.js to alert me to previous deletions as a workaround.

Just to note that I now use User:Writ Keeper/Scripts/deletionFinder.js so I don't accidentally nominate a page at AfD a second time.

It was my understanding that this was already possible through MediaWiki:PageTriageExternalTagsOptions.js and MediaWiki:PageTriageExternalDeletionTagsOptions.js

It works now; I can scroll through the entire feed from Newest as well as Oldest without any issues. Thanks!

Scrolling works in the test wiki set to Unreviewed and Show all, no boxes checked for predictions. I have no problems getting scrolling past 500 entries regardless of whether I sort by Oldest or Newest.

Firefox 61.0.2 on Mac OSX 10.13.6. Filters set to Unreviewed pages and Show All. Sort By is set to Newest. 2836 pages in your filtered list. I can see the first 20 entries, but can't scroll. When I switch Sort by to Oldest, and hit refresh, I see 5 , but and again, cannot scroll. I get similar results on Chrome and it doesn't seem to matter if I'm logged in or not. The console gives a number of errors: load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:139 JQMIGRATE: Migrate is installed with logging active, version 3.0.1
VM21:141 This page is using the deprecated ResourceLoader module "jquery.ui.widget".
(anonymous) @ VM21:141
VM21:355 This page is using the deprecated ResourceLoader module "mediawiki.api.options".
Use "mediawiki.api" instead.
(anonymous) @ VM21:355
load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140 JQMIGRATE: jQuery(window).on('load'...) called after load event occurred
migrateWarn @ load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140
VM21:136 This page is using the deprecated ResourceLoader module "jquery.ui.core".
Please use "mediawiki.ui.button" or "oojs-ui" instead.
mw.loader.implement.css @ VM21:136
load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140 JQMIGRATE: jQuery.fn.unbind() is deprecated
migrateWarn @ load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140
load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140 JQMIGRATE: jQuery.fn.bind() is deprecated
migrateWarn @ load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140
load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140 JQMIGRATE: jQuery.fn.hover() is deprecated
migrateWarn @ load.php?debug=false&lang=en&modules=jquery&skin=vector&version=0nvcwmf:140

In T169244#3449008, @Catrope wrote:

Perhaps that selection means "show me pages that are either unreviewed or have been nominated for deletion"?

In T169244#3391488, @Aklapper wrote:

Hi @Mduvekot, thanks for taking the time to report this!
Which exact versions of MediaWiki and PageCuration have you installed? (Or is this about English Wikipedia?)