Proposed solution: Exactly what it says on the tin. Any logged in user, whether they are a reader, casual editor, long term contributor or administrator, can create multiple lists of articles they monitor for various reasons, giving them a title (e.g. "Game of Thrones related articles", "important", "stuff I want to read later", "TODO", "articles prone to spam"). Users may or may not be interested in the edits to each page. We've been here before, so there is no need to repeat the multiple user stories this would address and the detailed justification (which you can find at the Phabricator ticket below).
Endorse. I watch about 5000 articles, and on any given day about 100 of them get edited. Some days I will do politics and others I do science but often I do not want to jump subject to subject. If I could sort my own articles into separate watchlists then I feel like I could be more efficient. I would also like shareable watchlists. Sometimes groups of people all want to watch the same collection of 1000 articles but not every individual in the group should have to set up that list of 1000 for their own account. Blue Rasberry (talk)13:51, 8 November 2017 (UTC)[reply]
Question for MER-C: wanted to avoid forking this if it can be the same proposal: are you married to multiple "lists", what if a watched item could have associated user-specific "tags", with a tag based filter for viewing? (May be difficult with RSS feeds). — xaosfluxTalk15:24, 8 November 2017 (UTC)[reply]
I too would love this. Effectively it is "folders" for watchlists. Could we add the feature to make it possible to have a "shared" folder that others could also subscribe to? This would enable a people to watch, and un-watch a set of articles (e.g. Articles with specific Arb-com sanctions on them; articles created during a particular Editathon, articles related to a Wikiproject) without each person having to add (and remove) items individually from their own watchlists separately. Like Google-docs, the creator of the watchlist could be the controller of who gets to see, or edit, their folder. Wittylama (talk) 15:30, 9 November 2017 (UTC)[reply]
I watch well over a thousand pages, even after trying periodically to cut the number down and removing stale discussions. This would be of immense use to me as a editor, and I could sort pages according to categories, or just by namespace: User talkpages, wikipedia discussion pages, articles, templates. Then by highly edited pages, stale discussions, deleted pages (shown on recreation). And by organize by subject, I could even move deletion discussions into their own watchlist. it's a great idea. That being said tags and filtering could be fine, but only if I can add pages to the tag with two clicks (I am not typing the tags out on every page). A Den Jentyl Ettien Avel Dysklyver (talk) 15:35, 9 November 2017 (UTC)[reply]
Actually this can be done by "watching" relating edits to some list - so one can create multiple lists as one's subpages and watch them. But I'll support this new possibility too. --Infovarius (talk) 13:51, 11 December 2017 (UTC)[reply]
Oppose. Nice idea at the first glance, but I have major concerns about this. Mostly about performance. Actual watchlists are problematic on their own, when fairly big (>1000 entries). Now imagine multiple watchlists, with duplicate entries. The performance would be a nightmare, the database requirements as well. Any reasonable solution will need a fixed limid for maximum number of watchlist entries. This alone would require a whole-community debate (RfC on Meta at least). I could support some proposal for "structured" watchlist (e. g. arranged according to the user's requirements), but not this proposal as it stands. --Vachovec1 (talk) 20:02, 27 November 2017 (UTC)[reply]
Support Glad to see that the feature I requested in previous years is still being requested, hope to see it done this year *crosses fingers* Ynhockey (talk) 20:30, 28 November 2017 (UTC)[reply]
Support can support tags for watchlist items, being able to order those 'folder' style, and being able to filter on those tags in your watchlist —TheDJ (talk • contribs) 17:17, 29 November 2017 (UTC)[reply]
Support will be really useful when you have a long watchlist or if you do a lot of patrolling and need to keep your own projects separate from vandalized articles. Bardia90 (talk) 20:35, 29 November 2017 (UTC)[reply]
Support My watchlist became useless a long time ago. Good ideas, but has to be studied well from a performance/load perspective. Anthere (talk) 16:21, 6 December 2017 (UTC)[reply]
Support, it would be great, I could have a list of articles I'd like to keep my eye on, and articles I plan to improve (it would also be great if I could add comments to the items on the list). Alensha (talk) 21:14, 6 December 2017 (UTC)[reply]
Support Personally I would prefer to have two watchlists: one for pages where every change is of an interest for me (articles I created, request pages I watch as an admin) and lower priority pages I might be interested in but will not check every edit — NickK (talk) 17:55, 11 December 2017 (UTC)[reply]