Stable income: Somewhat stable

Domain flipping involves buying and selling domain names for a profit. While it is possible to make money through domain flipping, it is important to note that success can vary greatly. Some individuals may consistently earn a decent income, while others may experience significant fluctuations in their earnings. From online sources and personal experience, it appears that domain flipping can be moderately stable for some, with periods of both profitability and slower sales. However, it is not as predictable as a steady job paycheck. If your best friend quit their job to do domain flipping full-time, you might say it's a risk rather than a guaranteed income source. I'd rate it a 3 out of 5 because while there is potential to earn money, the income can be inconsistent and may not always provide a reliable monthly paycheck.