Would the inflation also be removed from accounts below 250 MV? I think it should as it strengthens incentive for moderators( investors) to not split account because the more investors account split the higher inflation for those who don't. It works the same way with steem power, the more users power down the more rewards for those powered up.
Curation guilds could form with more users that were voting with their own voting power.
What would be the point of curation guilds if you remove curation rewards and give all users more influence?
One thing also steemit needs to add a decimal like busy does 
This is such an easy thing to change yet so important I don't know what the devs are waiting for lol It is crucial that users have a reference point for them to want more steem power.
I also agree that curation rewards should be removed, many authors have become lazy due to curation rewards because they know they are going to get botvoted no matter what.
I've seen the word engagement a lot recently, the easiest way to achieve that is to remove curation rewards. Users will read content a lot more, they will comment a lot more and people's vote will be a lot more meaningful to the authors and readers. And I think if we remove curation rewards there will be very little SP actually voting which means most of it will be given to the active users of the site, what better way to engage user than rewarding those who are active? Also some people have mentionned the importance of having very good content on the trending page, well if your remove curation rewards that's what you are going to get.
Overall I like this proposal, I think the 250 MV limit is good, 100 MV was a bit too low.
The exiting inflation that is currently given to all SP holders would remain the same. The additional interest that is added to the "investor class" would only be for the SP above 250 MV.
There would be much less of a need for them, but users could still band together and group-upvote posts that they wanted to reward.
A discussion for a different post ;)
What's the point? The people you are trying to convince here are whales, so why not give them as much as possible? The more rewards they have the more likely they are to get on board. Security wise it would also be better if moderators have a stronger incentive to not split their account.
If you do that, you now have a different group of people you have to "convince".
This whole proposal is for the other group at the end of the day so I'd say you won't ! They will finally get some more influence.
As we've found out though, some people would rather have money than power.
+1 for the decimal idea, seems like a no-brainer.