I am nominating @Winston_Sung for +2 rights largely for their work in a relatively neglected area of MediaWiki: language conversion. Winston was involved in getting the Serbo-Croatian language converter across the finish line (credited as co-author on the merged patch, see also this abandoned patch). This included some minor architectural changes and fixes to tests as well. And, even, more, language converter patches. Plus they organized the MediaWiki-Language-converter workboard.
My interactions with them have always been good, and I'm impressed with how they respond to CR feedback (recent example).
Winston has less patches than people I've nominated in the past, but I hope their willingness and desire to work in an area needing more developers makes up for that. I trust they'll use +2 powers to merge patches that they're qualified to review and slowly expand that capacity over time.