It's not critical at all, but it's something people have come to expect from an instant messaging program.
If our 'open' alternatives don't get those little details right, then it'll be harder for people to transition from whatever closed, proprietary service they're using to something that values their freedom.
I still don't know what "it" is though.
> If our 'open' alternatives don't get those little details right, then it'll be harder for people to transition from whatever closed, proprietary service they're using to something that values their freedom.
I also doubt a feature-perfect clone would attract that many users. There needs to be some advantage to using the system, otherwise network effect prevail. (yes, that's a bit oversimplified, but I think it's valid none-the-less).