1) Target's target is already a feature, it's <tt > ... you have to make a macro to use it, but it works just fine.
2) I'll give you that the camera still has issues in some short/narrow spaces and doesn't reset properly... but if you've done it a few times you know where you can stand to avoid those kind of problems. Don't park yourself in a corner.

3) you can resize everything with the CTRL-HOME option, 60, 80, 100, 120 and 140%. the only window that can't be resized this way is the chat screen, which you can move/resize without going in to the HUD screen.