I’ll still prefer the more generic notify wiki edits for topic watches since any post can be a wiki and it makes the feature much easier to explain.
Notify on wiki posts edits if watching topic
Notify on wiki post edits for first post if watching topic
Chances are, wiki posts not being post_number: 1 is going to be low and it doesn’t make the feature harder to implement if we decide to support all wiki-ed posts in a topic.
Yea I think making it global first is the way to go since we can easily move it into a user preference in the future.