That's the sort of iteration that basically every business needs to go through, though. The great-grandparent post points out Groupon as an example of a business that succeeded in much less than 2-3 years because it started with a business model, and I pointed out that Groupon neither had a business model when it started nor took only six months. This whole subthread started with a question about whether 6 months is adequate for someone just now quitting their day job - it's most likely that someone in that situation is at that "I'm thinking of a web platform for collective action" stage, not at the "I have a web platform for collective buying" stage.