This sounds like an interesting script. Every night I vote my account down to 90% . Sometimes I find myself voting randomly just so I can get to bed.
BTW: People can do something similar to your script simply by upvoting random posts in their feed. You can see your feed by following your account name in hive followed by /feed . Here is your feed:
https://hive.blog/@slobberchops/feed
!beer
I tend to send my VP down to around 85% before sleep, 90 is a little high considering it recharges around 20% over 24 hours. If I have to go out the next day, it may get close to 100, and that's wasteful.