Correct me if I am wrong, but the purpose of the bulk upvotes is to give your post a higher chance of appearing in the "Hot" section, yes? Because number of upvotes are factored into figuring out which posts go into the "Hot" section, right? Very interesting. Have you considered also offering bulk resteems? That seems like another great way to increase exposure. Even if the 40 accounts only had a few followers each, it could really add up :)

I will be trying this service out later tonight. Looks good!