Oh the times ... When i wrote a comment in news section and the comment was hide in a hearth beat by people that barely participated in the site but like to hang out outside the site, the ones that loved to abuse thread pools.
Edited: just to add that now its easy to click the plus and show a hiden comment, some months ago it was impossible , i had comment hiden and knew i had replies to it but could not even see replies because of bugs, now everything is fixed and great even on mobile
The down votes have had some positive influence on comment sections.
Remember the days when every comment section started with "First" and "In b4 ....". It served a purpose, maybe that purpose is no longer needed and behavior has changed for good.
Upvotes as well, it has reduced the number of quotes with nothing added but "Agreed" or "So much this!"