I went ahead and made a list of top 10 'owners of pending patches'. I have to stress that this is absolutely not a 'wall of shame' or anything negative: these patches are in itself significant work, and sending patches upstream - and crucially, rebasing, fixing CI fails and following up on upstream feedback - is a significant effort on top, and when yocto project itself needs to move forward and company management is asking to deliver a product at the same time, the time for upstreaming may simply not be there. So  please keep these numbers in mind and try to avoid making them bigger.

109 Khem Raj
29 Richard Purdie
24 Alexander Kanavin
15 unknown
15 Ross Burton
15 Robert Yang
11 Hongxu Jia
10 Martin Jansa
8 Joe Slater
8 Chen Qi

Another interesting statistic is that of 108 people with pending patches, 80 own only one or two patches.

Alex