T69703: Change MediaWiki default thumbnail size to 300px based on user behavior suggests that we change the default wiki thumbnail size to 300px width, based on user settings data, for all Wikimedia wikis as well as for the MediaWiki software itself. Copying here for that part of the change.
|Open||None||T71973 Allow bigger thumbnail sizes in personal settings|
|Open||None||T51357 Increase WMF cluster default image thumb size|
|Duplicate||None||T65134 Images are too small in MobileFrontend|
|Invalid||Edokter||T67160 Refresh thumbnail style in Vector|
|Stalled||None||T69709 Change default thumbnail size to 300px for all WMF wikis|
(In reply to Derk-Jan Hartman from comment #6)
Actually, I checked the news update and the deploy of the change seem to be
scheduled for the same day.
Seems that that is a bit short notice...
That's the reminder update I put in that it's happening – there was an initial annoucement back in June, I thought?
I don't see reference to any sort of user studies indicating this change would be positive (or at least non-detrimental) for readers, even those not browsing with fullscreen browsers on large displays or mobile devices with extreme display densities. Nor do I see any evidence that the community at large was informed about this, much less asked for input.
The one discussion I did find, https://en.wikipedia.org/wiki/Wikipedia:Village_pump_%28technical%29/Archive_128#Time_for_the_semi-annual_enlarging_of_thumbnail_images, was closed as "no consensus". Mainly because it was mostly people giving opinion with no actual user research.
So yeah, let's not go making such user-visible changes without some support for why we're doing them.
(In reply to Jared Zimmerman (WMF) from comment #5)
DJ, via village technical pump and ambassadors list
The Thumbnail Style update, was announced on the ambassadors list (and then postponed), but not the Thumbnail Size change.
I don't feel comfortable with pushing this change, especially right now. There is enough of a mess already, I don't want us to generate more.
I propose we just have this sit around until someone comes asking again, and then we point them here, saying there is no technical reasons not to do it, only political and that if they show us something that resembles a community agreement _across_ the wiki's, we will deploy this. That will save us the time in having to shepherd this through, collect evidence and deal with post change effects. Lets use that time for more important and constructive long term improvements, like for instance... SUL
I mean, it's not like we need this from a software or operations point of view. Design wants it (but I don't see how it would be critical to them) and a lot of community members have asked for it, but until someone shows me something resembling community consensus over multiple wikis, i'm not very much inclined to support a change like this. And even when that is there, we still need to do a substantial announcement.
So for anyone visiting this ticket: "Please show that you have the support of a substantial number of wikimedia communities and NO, for technical reasons, this is NOT a per project decision."