Validating demand
You have an idea and some early interest, but you're not sure the problem is real or big enough to waste your runway on.
Bloated feature list
Every conversation adds another feature, and now it's hard to tell what users actually need and make it all work together.
Going it alone
You're making every product call yourself, with no one experienced to bounce ideas off or sense-check the big ones.
Users not sticking around
People sign up and then quietly drop off, and you can't work out what's turning them away.