Word of mouth is a great way to grow, but only once you already have users. Word of mouth requires people to already be your customer to bring in new customers, so the less business you have the less potentially useful it is.
If word of mouth is the only advertisement replacement allowed, it would force many companies to rely on fake sockpuppet customers to try to get started.
If word of mouth is the only advertisement replacement allowed, it would force many companies to rely on fake sockpuppet customers to try to get started.