Went from arguing about the iraq war on forums, then to 4chan, then to reddit, now im here. The tone and culture of reddit was always better than Digg. The decline was very slow but perceptible.
I've always tried to be polite and forthright in my comments but Looking back, i was probably the shitty troll commenter that everyone hated.
I used to think that reading links and comments on reddit was so incredibly important for my development and education.