wodenokoto’s post specifically mentioned not knowing which color is for which service. That’s the confusing part. I can’t recall off the top of my head, either, so I tend to agree.
It has the color and also says “text message” or “imessage” over the message. Its pretty clear.
It's even clearer on WhatsApp, because every message is sent over the internet and never via SMS.
Yes & therefore, if someone isn't on WhatsApp, the message doesn't send at all.
I find it pretty incredible that anyone who posts on HN and uses an iPhone doesn't know blue vs. green. If you go up to any random iPhone user on the street and mention "green texters" there's a very good chance they will know exactly what you're talking about.
You keep repeating that color does it for you and other people keep repeating that it does not work for them. Suspend your disbelief. This is no Mensa puzzle, people’s brains just work differently.
The color is just one of the indicators. There is text which indicates whether it is iMessage or a Text message as well.