At such an early stage of validating an idea, the question of whether it would end-up being an open-source or directly monetised is premature. Of course, every idea or opportunity - should it gain traction - will come to a point of question of monetisation. However, open-sourcing doesn’t mean it’s inherently not monetised. It tends to be a top of funnel for other businesses and individuals to build their monetisation models, utilising the benefits of open-sourcing:
• many people contributing & keeping things up to date
• reduced friction & adoption for users
• spreading of the brand / free virality
In any case, I wasn’t aware of any guidelines against validating ideas, could you please point me to them?