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.