Voting power (now called mana) is already stabilized. An unfortunate side effect of the hard fork was users voting mana being reset at 0. Other bugs kept many from voting the day after the fork, during which time their voting mana replenished at the normal rate, to somewhere around 20%.
Many interfaces were still showing the old pre fork VP %, and upon the first vote by a user, updated to the actual 20% amount... but it did not drain voting mana at a greater rate than normal.
If you’ve ever left Steemit open a while before voting on a post, you may have observed that post jump a large dollar amount not attributable to your vote. While for a moment it seems like you gained super powers, the truth is that click interaction just refreshed the counter and you saw all the activity that had occurred since last refresh. In the same way, people simply didn’t see the decline HF20 brought to their voting mana until they placed their first vote post HF. Otherwise, voting has been working completely normally. Some folks are waiting 5 days to vote, I’ve simply cut my normal vote percentages in half and will recharge more slowly, but not have to abstain from interaction.