That is a nice experiment. There are sites which are analyzing the resteem services but they can only tell you the number of active followers of these services (and the numbers are not that big haha). So it's cool to see live results.
I found your post for example because I looked at some resteem services in case that I use one of them in the future.
You invested 5.7SBD for the resteems and atm you got upvotes for 3.82$. Can't wait to see the results after 7 days.
So you got a human upvote from me ;-)
Thank you! It is also worth noting that my largest upvote is not from a resteem service. It is from a person who sometimes upvotes my content and likely represents half of my total. So, from the resteem services, I likely got back 1.75 - 2.00 in upvotes.
I will continue to conduct these tests. I am enjoying the results and the responses I am getting thus far.
Thanks for helping with them!