There are two options: 1. if you reply to a tweet, or start a tweet with a '@', then most of your followers won't see it, unless they follow the replied to handler. so if i tweet a command to @instagram, only @instagram followers among my friends will see it, and there aren't many... 2. there will be cases where you want to engage a conversation around a command you send. for example:

CTRL @robinhoodapp buy $FB for USD100

So you buy FB stock AND you get your friends talking about it. Is it a good buy? a bad move?