Come on doc it was a little bit relevant 😅.
But coming back to your point, I think that reaching 500sp is like reaching the first 100 subscribers on YouTube, after that the benefits will start coming automatically.
In regards to fractional voting I just use another site where it automatically adjusts my voting and who to vote on like a bot.
Can’t remember because it has been so long since I’ve been on it. But that site adjusts it or I can do it manually as well.