I noticed this when trying to save a page on github. At first I thought my cookies were forwarded in the archive request, then I noticed that all requests [1] were "logged in" as this user.
The profile pic is very uncanny too lol. Curious as to if anyone knows why, but I'll do my own digging too. User "volth" does not exist on github at the time of writing.
edit: I'm not the only one that's noticed [2]
edit2: They seemed to be a really prolific github user [3]
[1] https://archive.is/github.com
[2] https://github.com/orgs/community/discussions/58164
[3] https://archive.ph/R5FyM
I don't know what's going on with archive.is, but that service has always struck me as sketchy. Unfortunately since I use Cloudflare WARP as a VPN, I'm not actually able to access archive.is (although technically I believe this is not because of the VPN, but rather due to 1.1.1.1 DNS and its lack of support for EDNS [0]). So again, I haven't investigated it much.
But I've always wondered who has the time and resources to maintain the archive.{is,ph,etc.} websites, which must cost a lot of money for no directly obvious financial gain. But there is some serious intelligence value to knowing who views those sites and where the links to them get posted. And that's not to mention how weird it is that they insist on EDNS (which sends client IP with DNS queries) in the first place.
[0] https://news.ycombinator.com/item?id=28495204