This method only works within your magazine, and will remove downvotes or upvotes on comments as well as posts.
To implement it, go to Magazine Panel -> Appearance, and enter the following in your CSS box to remove downvotes:
{span style="color:#323232;"}.vote__down { display: none !important; } {/span}
and/or for upvotes:
{span style="color:#323232;"}.vote__up { display: none !important; } {/span}
Example with downvotes removed : @13thFloor
Many thanks to @Anafroj for writing the original CSS code, and suggesting it as a way to combat trolls. Note this test shows that standard CSS works in Kbin, but you do have to replace <> with {} to get it to parse properly.
This isn’t a perfect solution, but it should mitigate the amount of users that try to sink communities through downvote spam.
Agreed, although I do like the “all” exposure as it brings in new contributors. I’d also really like to be able to set separate notifications options for magazines you mod, instead of having the only option be magazines you’ve subscribed to.