To answer the broad question first, about contacting moderators: we actually try to minimize private conversations on Stack Exchange. This is for several reasons:
Accountability: SE should be able to check in on how the mods are handling things, which doesn't work so well if we're, say, trading email with you.
Other people might have your question too; let's all benefit from it.
In general the moderators shouldn't be making decisions about site operation; the users should. A public conversation invites all users to weigh in. This is good.
Of course, there may sometimes be matters that are sensitive and shouldn't be brought up in public. Every page has a "contact us" link at the botoom, through which you can contact the community team -- SE employees who oversee the sites. If you have a complaint about a moderator, be assured that anything you say to them will remain confidential; if there's a problem SE will take it up with us, but they'll never tell us who complained or what exactly was said.
So, the best way to contact moderators (when it doesn't require secrecy, which should be most of the time) is to do what you did: post on meta.
Now, about your specific question: The answer you posted, which was converted to a comment, was:
Can you switch to 3rd person in an epilogue?
I'm not the person who converted your answer to a comment so he might come along and contradict me, but I would have done the same thing for the following reasons:
I probably would have been "fooled" by the "answer a question with a question" style too. Sorry about that, and especially as I've been on the receiving end of that myself.
It's really really under-developed. On Stack Exchange we're generally looking for more than one-liners. You could improve this answer by explaining how to make that transition, or perhaps pointing to successful uses of this approach, etc. While some sites (like ours) are more subjective than others (like Stack Overflow), we're still looking for answers that are more developed than comments one might find on forum-style sites.
It duplicates part of another answer that was posted about an hour earlier.
If not for that last point, commenting and asking you to edit your answer, rather than going straight to delete/convert to comment, would be the usual response. Perhaps an hour is too small a window and we shouldn't have considered that last point, instead inviting you to develop your answer more. I apologize for that.