I think the fact that you can even @ developers is huge and should not be taken for granted. Most other software you can’t even email developers.
Devs are not paid to answer your tags.
Don’t get me wrong, I have had my fair share of frustrations too, these are just two examples of many.
BUT, I think it is awesome and rare that we can so easily tag devs. Let’s appreciate the fact and not ask for more. Expecting them to reply to every single tag is too much, in my opinion.