Why does YA hide some answers even though they have no down-thumbs?

I sometimes find that answers are hidden for no apparent reason. This seems to be happening on the Religion and Spirituality section.

I thought it was due to a large number of thumb-downs, but this is apparently not the case.

I wonder what's going on, and why when I try to ask this in religion and spirituality, the button appears active, but does not accept my click on it, no response at all.

2014-10-02T13:10:46Z

I found that some answers were hidden that seem not to have any reason for that, and I got email for answers that simply are nowhere to be found. Bizarre.

DroningOn2014-10-02T10:28:34Z

Favorite Answer

Yahoo answers have some kind of checking system to find whether an answer is relevant or not. And it gets hidden if it is irrelevant or non-answer. for example, answers like "i dont know" or just a 1-2 word answer might appear irrelevant

?2014-10-28T07:23:33Z

A mysterious criteria that only makes sense to them and to someone on a glue huffing bender

james o2014-10-28T07:24:48Z

If you permit email, your address is not public, but you are able to send and receive email.

I have no idea how to respond to your query when you do not accept email.