What about introducing 1000% or even 5000% voting weight so that (if you want) you can use up your VP just for one voting per day or even per 5 days?
Let's be honest. Who can make a good post even once per day? But most users are posting everyday or even more frequently just for voting. This isn't also good for curation.
Even one posting per day is already too much! especially for people who can write a good post.
Are you worrying 5000% self voting once per 5 days?
Especially in the new world with quite active downvoting, I don't see any reason for not allowing more than 100% voting weight.
It'd be much better for both "quality" posting and reducing spam.
If you don't like someone posting 10 times a day, make it unnecessary.