Cool story bro but I disagree.
Idea or concept is king and without it, your inspiration is fluff. Inspiration is great becasue it can spark ideas but it should always be a supporting argument for an underlying core idea. Inspiration helps build mood, craft a look and direction to move in but that's it. Pretty mood boards without an idea holding it together.
In design school the first thing they asked us when presenting work is "whats the idea/concept?". If you didn't have a concept your work was seen as art because there was no idea to communicate. If it can't sell a idea or message, it didn't matter what it was inspired from. 8years later and its the same. If i only make inspiration boards for my projects I would be out of the job. You need an insight to sell your inspiration to others in order to run with it.
Ok, last thing, you sound really douchey writing shit like "I really don't give a damn about your startup idea..." wow. Pretentious much?