I didn't say that we are not able to implement it without a specification. But a specification would make things much faster because other people are working on the solution too.

Right now we don't have the time and the resources to do our own thing. Our priorities are somewhere else. This might changes in the future when we have fixed certain problems.

I think it makes no sense to have a client that has many great features but all of them are not implemented right. This hurts the network and scares away the users.