It took a long time for me to become an active user on Hubski, I would revisit it every once in a while when I was "out of Internet" but frankly, it took me a while to get the whole community/commenting aspect of it. You all acted like you knew each other! What was up with that! It's not that it felt insular but it definitely felt like a community and I wasn't used to that online. I would spend time thinking of questions and deciding whether they were good enough to be #askhubskis or not. I think my first askhubski was when I began to feel more involved. I had some sort of thorny situation and I thought, "This would be perfect to ask hubski! I bet they would have some really great input." That was probably when I began realizing it was important to pay attention to usernames. I never paid attention to them on Reddit - a key difference in how to approach sites, i think.
We've been here the same amount of time and only now do I feel I'm starting to become an active user on this site, precisely for the reasons you stated. Because of that community aspect where everyone knows who each other is, I felt significantly more self-conscious about what and if I should post.