A snap vote on features that people would like to see.
Upvote based on some sense of what the community should want, agreevote (the tick) to adjust for you personally.
There is a feature request thread, but I sense that old requests are getting lost. Hence, this.
Edit, I'm shifting my suggested voting rules. Agreevotes should now just be about the reasoning of the comment, as usual. They were basically entirely correlated. It was a trial and I was wrong.
Remove the ability to strong upvote/agree on your own comments/posts and remove all existing such votes. (I think you can on posts - I haven't written any so can't check.)
No, I have some of that sense that the current system is very gameable.
(A better system might be that your strong upvoting is spread across everything you upvote every week so you can eitehr give a huge boost to a few things or a small boost to many)