Apparently I need to re-evaluate my usage of the term "semi-recently", thank you very much for the link! I bow to your superior searching skills. I used the HN search site [0] if you don't mind me asking what did you use to find or did you just have it bookmarked?

[0] http://hn.algolia.com

I posted in that thread, so I was able to find it in my comment history without too much digging.

Google "site:news.ycombinator.com imessage phone number"

Google beats any site search I've used.