Some relevant info
https://www.bloomberg.com/research/stocks/private/people.asp?privcapId=271526534
https://threatinfo.net/companies/Shenzhen%20Thinksky%20Technology%20Co.,Ltd
It's painfully obvious what this user is doing but I don't want to even accidentally click on any of his sites
https://archive.fo/mQ4OJ#selection-151.64-151.130
If he was just advertising Indian rub and tugs then I wouldn't care.
What if they are with a VPN provider who says 'no logs'?
Yes I doubt in this day and age its practical for admins to ban known vpn nodes, more and more normal people are becoming aware of web privacy and so you would catch them up in a ban as well as the spammer.
Do you think a script-kiddie is going to pay for a no-log VPN? Because those are the only ones who honestly don't keep logs. You get what you pay for.
4chan bans every single PIA exit node b/c they want to sell "gold" memberships or whatever. It's actually pretty common. Geekhack does the same thing and it's mainly just a mech keyboard community. I've never posted there but can't access certain features b/c of "spam from an ip address" when using a pia vpn.
Depending on the VPN provider, the admin can contact the VPN service, let them know what's up. All VPN exit nodes are recorded somewhere so admin could technically ban VPN use on the site although I doubt they will.