It’s an answer to a customer who needs help or clarification.
It’s an answer so good they’ll retweet it to all their friends. It’s an answer that will make everyone who sees it think, “I like these guys. I’ll go with them next time.”
Bonus: Every time you solve a problem with a tweet, it’s 95% cheaper than solving the same problem over the phone. And it starts to save you big money if other people with the same problem see the tweet and also get their questions answered before they incur tech support costs.