I suspect the source of reports like robin's is the common (and misguided) perception that a few buggy things indicate an overall bad experience. Highly selective use often exacerbates that perception, whereas certain exclusive use can produce the opposite.
For instance, I have not used the thumbboard in months so I have not seen any bugs related to it. In fact as of today after installing 51-3 the only significant problem I've seen is Maps crashing (at very bad times too). Other than that and some occasional poor responsiveness from microb OS2008 is running very nicely for me.
I don't say that to make robin feel bad
-Given that some are not experiencing those bugs, I would think some of us can help you. Often bugs do not manifest in a vacuum but have underlying, and commonly hidden, causal factors
I understand you are trying to tell the story for you and on behalf of others, but you must understand yourself that your approach can lead to entrenchment by those who have seen the opposite of your experience.
Asking for help from those reporting a better experience than yours works much better here than tossing out blanket statements of unusability.