Love the idea, hate the name.
Also, "messaging done right" is a bad tagline as it doesn't tell me anything.
With messaging done right we mean Messaging without you giving up any private infos. No email, no phone nr, no sign up required. In fact you can use Dikalo without ever opening an account.
The reason we started with dklo.co is because we wanted people to type as little as possible.
Most links are sent via text (email, messaging, social networks) where they're automatically turned into hyperlinks. Length isn't an issue here.
When they are spoken, vowels help a lot. It's not fun to spell out D-K-L-O-DOT-CO, no not COM, CO.
In the end though, I don't think it matters that much either way, just bikeshedding.
Sure, have a short name once people are converted, but make a good first impression.