My low opinion on a reverse split is simple(and a please don't): 90bil is not a lot if you consider world wide usage. Long term if even 10% of the population used it, with an even split that's 90 coins each (maybe double, I haven't looked up the world pop in a while--probably closer to 6bil than 10bil).
Without that, it's simply psychology. If you reduce the number to 10%, say 9bil, and the price goes from 1 sat to 10 sat you think "oh, this makes the market better," but if trading at 1sat worth of ltc or 10 sat, it is still the same thing. Imo, psychologically, people getting into the idea behind karma will like the idea of giving to people. Giving someone .001 is a joke to the average person and they wont bother. Giving 10, 100, 1000, etc seems like it is something regardless of if the value of all of those is the same. I think part of the pain for btc to move forward is its high value. No one, not really understanding bitcoin, wants to spend $200 on .3 of something or gift their friend .001. If they were buying 30, it seems like something and when the price moves they can interpret it better.
In the end its the same thing, different numbers, and changing it just to stay on the satoshi wagon is a waste imo. I personally think the strength is in the amount, long term specially. I think the feeling and psychology behind that is a strong strong point for adoption. The other side is people selling it don't want to sell 1mil for .x btc, selling smaller amounts feels less like a waste to them. But its the same thing either way. Raising the individual value of karma, imo, goes against the idea of people using it for its purpose and is just traders wanting their way and people excited about it wanting to see it worth something.
A good example is the tipping app. People toss around 1k-50k of a coin and its like 'wow, look what they gave out' If they were tossing out 1 and 2, its just meh--I might not know anything about either coin, but I notice to big numbers and don't think twice about the small. That is personally why I always bought into the size of karma. When I see something great I want to say, "here is 50k for awesomeness," not "here, take my meager .5"--even if they equal the same thing. With the proposed ratios that would be an extreme example but its the same idea. If you are interesting in this coin and believe in its long term, wide, adoption I think changing the amount is a temporary bandage and a waste of potential--and also quite risky if the market doesn't move to meet the new size.