Users can downvote once a day without consuming Pal voting power. This is another difference that aligns quite closely with proposed changes in Hardfork 21. Hardfork 21 ........ If someone is heavily invested in Pal and not Steem, they are more likely to use the free downvote. After Hardfork 21 is implemented, downvoting on Palnet is likely to become more prevalent.
If downvoting is not happening now on palnet, yet it is still an issue and almost daily occurrence on steemit, I do not see why after HF21 the downvote habits would change on PALnet. As you mentioned in another section steemit has TOS, PALnet has Community Standards. Perhaps the reason for the downvote difference is not so much a person losing some steem vote power, but that the users on PALnet feel there is a safety system built into the community to prevent abusive downvote behavior.
The primary response to abuse is still likely to be downvoting. Considering Palnet is new abusive behaviour may not have had a chance to take root. It would be great if community rules are the answer and downvoting is not necessary.
Posted using Partiko Android