Tumblr can be an amazing marketing tool for any brand, as it usually emphasizes strong visual content that’s easily sharable to mass audiences. Its beautiful templates are easy to manipulate and change, and many are completely free. Plus, the Tumblr culture is generally welcoming, friendly and accepting.
It’s similar to the problem with online reviews — people are far more likely to leave a review if they’re pissed off about something. If they’re happy, they probably recommend it to a friend and just keep on living life.