Taptalk HD isn't any better, often it is unresponsive when you switch back to it from multitasking and you have to kill it off and reopen it. It also suffers from the random quote issue and will occasionally mark all threads as read for no apparent reason.
I get this very often.
The trick is you have to press the "Back" button when things become unresponsive. That will automatically take you all the way back to the Tapatalk main page with all the forums listed, and you click Anandtech again and it works! VIOLA!
No need to kill it or force close the app.
This happens to me on both the regular and HD app.
My issues with Tapatalk:
1.) Already described above.
2.) Some pics don't load.
3.) It never tells me who I'm quoting, but I've also never had any problems with it quoting the wrong person that I can remember.