Interesting woofer problem

General
1

I saw this on AudioKarma and wondered if anyone here has ever seen this kind of woofer damage -

https://audiokarma.org/forums/threads/after-all-these-years-of-rebuilding-speakers-one-of-the-oddest-woofer-failures-ive-seen-yet.1110285/

2

Nope, never came across that issue.

3

New one on me.