Is it actually unimportant if a chat message is dropped? It seems damn important to me, what use is a chat app if someone sends you an important message and you never receive it? I could see that being true for something like anonymized logs where you are only going to be looking at it in aggregate, but just silently ignoring chat messages really doesn't seem acceptable to me.

I mean is it desirable behaviour? Would you not want a chat program which never dropped your messages? If that's the case, we should work towards it, not accept a 1 of 1000 messages lost because "there are more important things to worry about". The most important feature should be prioritized over less important ones, but it should not make us forget them - they should be as good as possible as well.

I guess what I'm trying to say is this: You cannot ignore all the other features except the biggest one.