TweetFS uses the SeqTweet library, which takes care of sequencing the tweets for you. Specifically, see the _list_to_twitter method: https://github.com/workmajj/seqtweet/blob/master/seqtweet/se...
One of the use cases of TweetFS is to use Twitter as a 'dead drop'. You'll generate a lot of tweets by doing that, but there's no harm done.
I don't think I hijacked your thread. The other comments also discuss textual steganography.