I am thinking of not launching on PH

In my journey of building my next startup, I have met different people who have launched om PH. Some claim succes others only report failure. For example; they got a lot of traffic and sign ups after launching but almost no conversion to paying customers. It made me question whether PH would really help my startup to launch. It is a lot of work to build up a community and if in the end no one is sticking around what’s the point? What are your thoughts on this?