What does archiveteam do differently than The Internet Archive? It wasn't clear to me reading their about page, as well as some odd main projects with IRC channels being a main goal.
They try to do complete crawls of sites (mostly of user-generated content) that are known to go offline soon or at high risk of doing so, vs the Internet Archive crawler which as far as I know crawls everything every now and then.
If a siteowner is willing to hand over a data export to archive.org or another archival site they don't have to do that, but not many do.
