Start with the customer problem, not the product
A promising product is easier to evaluate when you can explain who needs it and why.
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A product can look compelling in a feed and still be difficult to sell. Begin by writing down the problem it solves, who experiences that problem and what alternatives people use today.
Then look at the product evidence. Activity, platform and market can help you decide whether an idea is worth a closer look, but they do not replace a clear customer need.
Before testing, make the reasoning concrete: the customer, the problem, the product benefit and the reason to believe. If one of those is missing, that is the next research question.