Not sure why you're getting downvoted, I had the same reaction. If you have a sustainable and healthy business that is growing year per year, 3 years of today's profit and under 1x the revenue might as well be paid off in under a year 3 years from now if you got PMF and work torward scaling your business. It becomes an opportunity cost calculation which in the case of the author might be ok but definitly not ok for many of us indie hacker who are spending their heart and soul building a sustainable business.

I'm guessing either the author had a very strong personal reason (i.e. really wanted out), or the business was not particularly sustainable/growth-favorable for one reason or another.