The script you're looking at is a humorous "financial advisor" that places funny and non-traditional investment advice labels on a trading chart. The advice doesn't really have any meaningful connection to real financial indicators or market trends, and it's meant for entertainment purposes only.
Here's how it works:
Every 23 bars on the chart (a bar could represent a day, an hour, or another period, depending on the chart settings), the script places a new label.
The content of each label is determined by the remainder when the current bar number is divided by 10.
Keep in mind that this script is just for fun, and you shouldn't base any real investment decisions on its output!