Potentially, theoretically, if curation rewards is increased up to 50%, that may motivate more people to upvote as they may in fact earn more money that way.
It will take time for people to adapt and change their behavior towards more profitable for all of us (the platform).
As people downvote, will their downvote power and weight increase and will this second pool grow and grow, is my question. I'm guessing that if people are paid money to downvote
No. People will not get paid for downvoting, the purpose of separate (small - 25%) downvote pool is to not decrease general voting power when downvoting, so if you cast 10 upvotes per day and decide to cast 2 downvotes to fight spam/abuse, those 2 upvotes wouldn't decrease your upvoting strength.
RE: HF21 - Funnel Extension