What's the deal with Inkbunny suddenly not being whitelisted as a URL to upload from?

Seems to be that newer posts are using format https://inkbunny.net/files/ while older and whitelisted format is https://nl.ib.metapix.net/files/.
They already changed the submission format from https://inkbunny.net/submissionview.php?id=<ID> to https://inkbunny.net/s/<ID> as well, so I guess they are updating to make things clearer and/or something else.

So forum #181740