Well, I don't read everything but I certainly don't actively discriminate. I do have to skim more than I used to as traffic has increased and my free time has dwindled. I also don't reply to everything that I read. Sometimes I just don't have anything to add or I don't have time and forget later.
If ever I seem harsh it's because I can't endorse destructive attitudes, even from people that I otherwise get along with. I only dislike people who are chronically and unapologetically destructive and I'm happy to say that all of those people seemed to have moved on. I'm relatively happy with our current community and only wish that people could catch themselves before negativity takes hold.