God I hate UI designers. "It looks fine on my 4k vertical monitor!" "All the users who willing used it liked it!" "Everyone who doesn't like it is a troll!" "Muh telemetry and data!" "We needed it more modern!" (read: bland)
Nexus basically has a monopoly on modding. The only thing that comes close is Steam Workshop. Of COURSE people are going to continue to use the site, grumbling to themselves, bearing yet another indignity. "People still use the site!!!" isn't a defense. 95%+ of users don't give feedback. Do most users even know there is a forum? Nexus ain't listening, so change the thread title to "Vent thread". It'd be more honest.
If Nexus wanted real data, they'd stick a one-click poll on the front page: Like the new look YES or NO. Have it be public too. (SPOILER: they'd rig it or claim brigading if they lost. Or just disappear it.) Better yet, have the old layout be optional, from a temporary banner and not buried deep in settings, and see how many switch back, I guarantee it will be sizable.
Nexus won't of course. They will never, never, ever admit they made something worse. And having an option to switch back might imply that their new design wasn't the best most wonderful gift ever graced to God's green earth. You ever meet UI designers? Not happening.