Looks like a new highscore for me, nice! What does the orange color mean?
By the way: I think you should stop incorporating the number of witness votes. Voting for 10 witnesses you really support is better than voting for those 10 + 20 random witnesses imo, as those 20 will not have a disadvantage in votes as compared to your 10 real votes.
Nice!
It means you get a prize from a sponsor :)
The scoring for a witness vote is really low and wont change the ordering at all, but i see why it might not be considered engagement.