What do you mean, still.
There was no plan to remove that feature from Steemit.
Some dApps don't have it built in, which is a shame.
Nevertheless, down-voting is a very important part of curation process.
It is how blockchain "cleaning" projects return rewards into the reward pool for actual quality content creators to enjoy.
Is a spammer or plagiarist cash their rewards, that's $ value quality content will not be rewarded with.