This question is starting to look like trouble. On the one hand, cardinality is a common and understandable source of confusion. On the other hand, the OP does not seem to be acting in good faith, and is verging on crankery.
Note that there is a "convert answer to comment" function that moderators have access to.
Also if you are the owner of the question, all the comment entry boxes are pre-expanded for your input to invite you to respond correctly in comments.
I converted the two obvious non-answers that were comments, to comments.. but I can't quite tell who he is talking to when he says "Charles" as there is nobody by that name on the question.
Anyway, better that this sort of weirdness is closed altogether to prevent answers.
I agree with Hendrik, and I actually was tempted to post earlier on meta. However, I wasn't sure whether I should since I'm a relatively new member here, and I didn't know if my views would be shared.
I understand that posting answers makes the question rise to the top and so it should not be used as an alternative to the comment system. However, most of the feedback the OP received was in the form of a large number of discouraging downvotes and your well-intentioned answer, which had a note about confusion that he probably felt was insulting. After I posted an answer, he posted a very gracious response (albeit answer).
I think the problem here is that John (the OP) has some fundamental concern, but it is not one that we fully understand. There are many philosophical and mathematical questions that arise when we study the infinite, and it is easy to get "tripped up" even with a fairly firm understanding. I hope that my answer, while probably not satisfactory, will get John thinking on a track so that he will be able to adequately answer his own question.
I'm not really a member of this community, so it's maybe it's not a good idea for me of all people to answer this question.
I can't really see bad faith in the behaviour of the user in question. Yes, he does abuse answers as replies, but as far as I see, noone told him that one shouldn't do this. Yes, he should have read the faq, but I think it's best to first tell him politely to do so. And yes, the question may be regarded "not a real question", but it has several aspects that can be answered.
In short: The only bad behaviour (not bad faith) I see is the abuse of answers, and that could be dealt with better than with downvotes.