Here's the relevant pages from the Internet Archive:
- https://web.archive.org/web/20210302035850/https://upvotes.c...
- https://web.archive.org/web/20210120172656/https://upvotes.c...
Upvotes are $1.95, "max: 10/new post - We upvote with very strong accounts; if you don’t make it to the main page after at most 10 of our upvotes and a few organic ones, more won’t help!"
Comments are $7.50
Presumably figuring out which "very strong accounts" are used for this would be a case of buying some upvotes and comments and watching which accounts are used.
> http://web.archive.org/web/20210126003211/https://upvotes.cl...
Frankly, it would be enough for dang to buy one and ban all these accounts. They would have to gather all their karma from zero. Ethically grey though.