> Back to the dashboard experiment: after you applied the Bonferroni correction you got... nothing.

I guess you got something: Users are not sensitive to these changes, or that any effect is too small to detect with your current sample size/test setup.

In a startup scenario, I'd quickly move on and possibly ship all developed options if good enough.

Also, running A/B tests might not be the most appropriate method in such a scenario. What about user-centric UX research methods?