No-reward from self-votes on comments.

When a user vote on his own comment the rshare ($ value) would count toward ranking but would not be paid out to the user.

This preserve the benefit of SteemPower holder to give increased exposure to their content (thus future reward) but limit the temptation to create comments mainly to self-claim a reward.

Commenting only to self-reward has increased tremendously with HF19. A huge increase in comment spam makes conversation much harder to follow. People have to browse through pages of comments made by bots to find relevant information or real people waste time answering bots.

Note : I do not recommend this no-reward from self-vote policy to be considered for posts at this time, only on comments. (Post usually have a higher expected level of work put into them and are more independent than comments thus less invasive).

Increase down-voting power to counteract the lost curation reward opportunity.

I recommend increasing the strength of the downvotes (flag) relative to the percentage decrease in voting power by a factor of MINIMUM 25% but closer to 50%

People using their their steempower to downvote (flag) content almost always do so to improve the platform as a whole. It's usually to suppress abusive behavior or to demote content to the benefit of better content.

Reasons suggested by Steemit to downvote :

Disagreement on rewards
Fraud or Plagiarism
Hate Speech or Internet Trolling
Intentional miscategorized content or Spam

Detecting these abuse is a thought intensive process, requiring SteemPower to enforce it almost guarantee that nobody does it unless it's justified, but missing out on curation reward makes it a cost negative action (and that's not even considering risk of retaliation Vs. possibility of a reward kickback).

Example : It would cost a user the same % of voting power to bring down a post by $1.50 than to bump one by $1.00

Some of the latest post related self-voting and reward abuse:

https://steemit.com/project-smackdown/@inertia/self-voting

https://steemit.com/steemit/@kyriacos/deceptively-optimistic-self-shilling-posts-hurt-steemit

https://steemit.com/introduceyourself/@copypastewaster/introducing-copypastewaster-an-account-dedicated-to-reporting-rewards-pool-rapists

https://steemit.com/steemit/@rycharde/ideas-for-future-rule-changes-voting-earnings-maximum-social-benefits-a-discussion-document

Please note that I will be moderating this thread for any small comment that does not contribute to the conversation. (do not take it personally)