I'm fairly new to the forum and what I like about it most is the notifications for new activity. It's like a gentle reminder that says "hey there's a discussion over here and your invited!". I've been treating each notification like it's personally sent to my inbox. Sometimes I respond, sometimes I upvote, and sometimes I peruse and move on.
I think this feature, paired with the overwhelmingly positivity all over this forum makes the discussions fun, helpful, and interesting.
I also really love critiquing pieces as I feel it is the most potent way to help others get better. I've found that people here take critiques really well! Maybe they're influenced by the coursework or their own nature - but I hope that will never change!