to update:
looks like he has a new website -
http://vanitygenbitcoin . net/ (added spaces as I dont want an actual active link to the bullshit site)
this site was just registered on 6/29/2020
but at the bottom it states "2014-2021" -- so my guess is that it is the same guy just with a new domain...
also this person appears to have quite a bit of background looking into the site
https://ushertechs.com/the-bitcoinvanitygen-scam