I believe this is the right step for Counterparty in the long-run. Diversification via different assets is something we haven’t dug into yet. I think having several different premium assets is something that can distinguish XCP a lot from it’s competitors and could open up specific use-cases in the future.
Three-letter assets is a great start, I think 10 XCP is a good starting point as well, but even 25 XCP would be ok in my opinion.
In regards of what this can offer to the platform: I think the use-case is being popular amongst traders to be able to distinguish yourself with 3 letter asset-names. I would much rather have a ticker named ABC than ABCISGREAT. It will be important in the future to stand out from less valuable tokens on the platform, simply because of transparency and integrity, and when an asset that is more rare costs more, it naturally carries a larger trustworthiness with it, as it’s more expensive to create.