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You didn't read the post directly above yours I guess, this thread was bumped by @Pokapoka124, congratulating the OP, but he was 'corrected' by DdmrDdmr on how the OP was guilty of some misdemeanor on the forum which assisted is his rank up, and why by extension the thread is somewhat not that inspiring after those discoveries were made. I'll suggest you read DdmrDdmr's reply before yours as well as the links in them, to get the full story; and next time try to read other replies, not just that of the OP, before posting.
Upon reading the OP, the tendency is to congratulate him immediately especially just by simply looking at his rank and merit. He just needs more activity to reach a Member rank to Full Member because he already has enough merits. However, it was posted almost a year ago now and realized that the ranking up was suspicious. That 50 merit in this kind of post is very unusual. Glad DdmrDdmr clarified that.
Some won't notice that as well and will just congratulate op. Though there's nothing wrong with greeting someone for their achievement, it would still be better to read the most previous reply/replies so that your response will also be updated.