They did, but only just recently: https://www.intelligentliving.co/scientists-finally-figured-out-how-eels-reproduce/

I am not going to bother taking a picture to upload with the model. Then you never get to see what I made. I understand the concern with AI slop, but this would also hurt the collaboration/sharing for non AI related posts.

The problem is even if the “structure” is being manipulated, the web site is freely sharing data to your computer. HTML is just data. Code is just data also, there is no reasonable guarantee that random code you hand out on the internet can run on what you hand it to.