I run several big boards for clients and they are statistically and financially successfully.
However I Also class my own xenforo site as a success for its purpose
I wanted a place for myself and my best friend to be able to work on our fiction project together
We do role playing games, since December the 16th we have done over 6500 story posts, registration was disabled and site turned to private as soon as my friend joined up
To me and my friend it brings alot of joy, and therefore is a success.
What do you class as success for you/your sites?