You could stand to improve the formatting of your posts. It will get your more readers and upvotes. Nevertheless, upvoted because I like seeing good discussion of varied topics on here. One simple tip is that you need two newlines to create a new paragraph, like this:
(New paragraph)
Thanks for the info. Edited with extra space.
Looks much better now!
What does the $ figure between the vote arrows represent?
It's the estimated current value of the reward you will receive for your post on the 4th of July when the first payout happens. The reward is from people voting on your post.