Patio11 was blogging about his old Bingo Card software for many, many years and became one of the most high-profile members of Hacker News because of it. I don't think a flood of competing Bingo Card software came in.
A lot of the time, finding a good enough niche, a small enough niche, and understanding customer acquisition for that niche is all the "moat" you really need. Remember, your competitors likely don't know your market as well as you do and are probably fighting a harder battle than you initially fought since they have to compete against you.
A lot of the time, finding a good enough niche, a small enough niche, and understanding customer acquisition for that niche is all the "moat" you really need. Remember, your competitors likely don't know your market as well as you do and are probably fighting a harder battle than you initially fought since they have to compete against you.