In T354928#9479736, @kostajh wrote:

In T354928#9479618, @Tgr wrote:

In T354928#9471615, @Tgr wrote:

Needs a heads-up to admins when it is merged (not sure if Tech News is the best venue for that, but it's the simplest) because some users might use the appeal mechanisms for IP blocks, and since the message and mechanism is vaguely similar to that, admins will get very confused if they are unaware that we are doing automated pseudo-IP-blocks now.

My bad, this is actually not enabled yet, so doesn't need a notice right now. But at some point we do need to explain what the new error message means.

I'll plan to do that when porting the code to MediaWiki-extensions-IPReputation

See also https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CentralAuth/+/989728/30/i18n/en.json#510:

You write to the existing channels (VRTS, steward noticeboard; maybe UTRS could also be reused) with your IP and what username you want, someone checks the IP info, decides you are OK, creates the account for you and makes it ipblock-exempt.
For that, the message should probably include the IP address. It's useful both for admins to know why the IP got denied (I imagine using a proxy and someone having done web scraping from the same IP would be handled differently), and so they can better report problematic blocks to us

See also: T355642: ipreputation blocked message should have a parameter for current IP