A small chan recently added an /f/ board, came here to suggest that these flashes should be archived aswell.
https://22chan.org/f/

Also, while you obviously can make the suggestion, it's unlikely that any new sites are added to the scraper, as only a very few select sites are getting pulled automatically and regularely.

Best to just check periodically and if you see something new or saveworthy, post it here, or at least check if it's already in the archive.