Now hold your high horse because I have one too!
I don't remember saying I wanted a priority service?
Whether a service is free or not, it's just good practice to let people know what is going on rather than meeting it with an automatied reply then silence.
Remember the negative feelings on the recent downtime and slow server performance and how that turned into positivity when we were finally informed what was going on?
It's the reporting of issues (and thus the subsequent problems being identified and fixed) that will make wordpress.com a better service. If you just say it's free, so i don't have the right to say anything, things won't get fixed and improvements will be built on faulty foundations: been there, seen it happen.
If you install some free software on your own PC and it were to erase your hard drive or damage an important database because of a bug, would you stil take the same stance? Glib comments about forking out for hosting and telling me what I should or should not consider aren't helpful.
Trying a trackback between our blogs to ascertain if a certain type of trackback succeeds (external) where another fails (internal) is helpful as it may help to narrow down the problem. It may work from me to you but not you to me, which also helps narrow it down.