I created a tool that I had a need for myself and posted it to Reddit completely for free. It became the top post of the month on its particular subreddit and had over 1500 up-votes with tons of people thanking me. Honestly, it felt really nice.
Lately I have been wanting to start a side-project and realized that I potentially already had an idea with great market feedback. Do you think this is enough feedback for me to pursue adding more features to this product and charging for it?