Downloading whole threads from 4chan

How do I do that with Linux?

tedious method:
open thread in reply mode,
expand all images
save as

Have you looked at the page source or the CSS, there might be a tweak to expand all images in there without having to click all of them.

What about wget? Are there any flags that'll do that?

pavuk, w3mir... maybe these?

>>3
man wget

It also has an option to just download all files of the type you specify that are linked from a certain page.

6 get