Finding KiwiFarms posts that currently dox a user are going to be hard, because now that the site is under increased scrutiny from the public there is likely to be an attempt from moderators to remove posts. We can clearly find posts however that doxxing has been part of the sites history for years.

For example, this post contains an address:

https://kiwifarms.net/threads/onision-james-gregory-jackson-...

Here is a post containing the IP of some user:

https://kiwifarms.net/threads/leonard-f-shaner-jr.9940/page-...

Here is a list of past addresses for someone:

https://kiwifarms.net/threads/russell-greer-just_some_dude_n...

I don't know that IP addresses are doxing. Maybe, but doesn't seem like much for that.

Past addresses isn't doxing.

You have one example. I do appreciate the example. I don't really think 1 post is really systematic though. You could easily find an address on any of the big players. They appear to remove posts that get reported so it is possible this one wasn't reported.