EDIT: There is no longer a link to the user in the flyout, but it still applies on Special:Notifications.
In Notifications, can we link IPs to their special:contributions page, instead of their userpage?
eg. We currently have:
Your edit on [[Mike Patton]] has been reverted by [[User:18.104.22.168|22.214.171.124]]. (Show changes)
Your edit on [[Mike Patton]] has been reverted by [[Special:Contributions/126.96.36.199|188.8.131.52]]. (Show changes)
This would be consistent with the way IPs are linked in all History pages, eg https://en.wikipedia.org/w/index.php?title=Mike_Patton&action=history