A few counter intuitive things we've learned building FC: 

1. Make people sign up on mobile

Push notifications and little red dots on the home screen are the lifeblood of social apps. Most users who sign up on web will simply forget to come back.

Technowatermelon. Elder Millenial. Building Farcaster. 

nf.td/varun

This 1st one is very dependent on what kind of users you want. People like to claim that it results in the most mobile users possible - and while this is true this doesn't mean that they will be high quality users. And while its true that the signup flow being forced via mobile will result in the app being more "sticky" due to notifs there is a strong argument that can be made that desktop users are higher quality and provide better content.

I realize that Far/warpcaster allows for both with the signup process being on mobile, but smartphone-only apps seem like a terrible idea.

In my own experience the lack of a seamless desktop wallet experience (i.e. no extension required like on Polymarket) makes using Frames annoying because I don't want to use a wallet extension.