Title says it all. I had a situation where a moderator answered a question and then marked another answer (that said the same thing, but more directly) for conversion to comment because they felt "its length was not up to community standards".
While I think it is important to maintain some set of standards for answers, I don't think it is appropriate for a moderator to remove (and therefore penalize) other answers to a question in which the moderator has also provided a "competing" answer.
In response to some of the comments...
Linking to the question has dealt with the specifics of the question, not the thing I was trying to get addressed. Also, there is no place that shows what mod has actually done the removal. This is not about WHO did the deleting.
Because some are reading the question and ignoring the statement in the title, it bears restating - "A moderator should not be allowed to moderate questions in which they have participated in answering (and vice versa)".
I want this feature added (hence the feature-request tag).