Reading Reddit complaints for a year, then building a micro-SaaS ($1.6k/mo)
A founder spent a year collecting complaints about software from niche users like plumbers and solo lawyers, turned them into an idea list, launched a waitlist of 2,000 people and now reports roughly $1,600/month from five paying customers. Year one earned only $197. Self-reported income, unverified — and the lesson that 2,000 waitlist signups are not five payers.