The comment history on the answer doesn't exactly look good for anyone involved in the discussion. I might suggest, when you feel a little calmer, that you flag it for moderator attention and ask them to delete all the comments -- they certainly add nothing to the discussion.
I can understand your frustration that the "answer" written was portrayed as a hint, which when you investigated seemed to lead nowhere (I'm being diplomatic as I've not attempted to solve your problem myself) but generally speaking getting annoyed with the answerer rarely leads to a positive outcome. I would suggest using the site tools in these circumstances: downvote or flag as "not an answer". You might comment asking the answerer to explain a little further, but since all contributions are voluntary there's no guarantee of success, or even a relevant response.
It can take a while before someone with the relevant knowledge sees your question: it is a good idea to post questions with an attitude of patience -- if it's a difficult one (and this seems to be) then it will likely take a few days. You may need to offer a bounty to attract enough attention, or find someone else willing to bounty the question for you. Don't forget that everyone here is a volunteer one way or another, and for some people it is very offputting if you appear to be acting with a sense of entitlement.