It wasn't a thread with autumn poems, it was a thread with alterations (photoshopped pictures), one if which happened to have an autumn poem in it.
But I'm glad to know someone actually cares about them.

Actually, the old thread is still there: https://www.gurochan.cx/g/res/47.html

There's also a new one here:
https://www.gurochan.cx/g/res/67047.html