The best way is to just explain why your question shouldn't have been closed. If your reasons are wrong you're going to get downvoted. Meta rep doesn't really mean much, so I wouldn't worry too much about it. If you're right (and I think you have a case with the post you linked to) then it should get reopened by the community or by a moderator.
I just did a search here on Meta for "question should not have been closed""question should not have been closed" and found a lot of positive examples (among the negative ones, of course) that you can look at. Just state your case as to why you think your question doesn't fit the close reason given. If you can do that without going off on a rant, you should be fine.