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Earlier today I posted this question which yielded a really well-done answer.
I'd like to attract attention to this answer in the hope that the answer will get upvoted, as a kind of reward for the quality of the answer.
Is there anything that I can do to achieve this?
Yes, you just did. :)
Seriously though, apart of posting here you can also wait two days and grant that answer a Bounty, taking anywhere from 50 to 500 of your own reputation.
One of the bounty reasons is "Reward existing answer":
You can add a bounty to your question and give it to the deserving answer.
This will essentially transfer your reputation to the one who answered.
You could also post a link to the question on Twitter, Facebook, et al.
Reference it from a question on meta!