Peldi is just super friendly and a superhero with customer support. I believe that played a big role in the beginning, and perhaps later.
I knew Peldi from the Flash days. Met him once or twice in SFO, and he has an infectious smile and was super friendly.
Once, one of our team was showing me Balsamiq and they all liked it. I tried and it was super easy to use. I went to buy the license or I went to ask how to buy it, and Peldi replied back, something in the lines of, "Free for you buddy. You did enough for the community, this is the least I can do." That was also the time when I realized Peldi was behind Balsamiq.
I had had various interactions with him, not just about Balsamiq but asking him stupid questions, advice, and networking introductions.