On Dec 17 somebody posted a wget command for scraping an entire thread
wget -P ./thread/ -nd -r -l 1 -H -D media.8ch.net -A png,gif,jpg,jpeg,webm https:// 8ch.net/cbts/res/112573.html
Look up wget syntax online to understand what all the parameters on this command do.
One could spider / download the archived zip files with wget too