@atomicpoet To say the least.

You had to type the letters RT to retweet, and other Twitter rules like:

"If you just reply with @username the tweet will only go to people who follow both you AND that person

If you add a dot before the username, it’ll go to all of your followers

So, by default, when you reply to someone, most of your followers won’t see what you said to that person unless they also follow the person you replied to."