[yaeger]

Woah, that'd be a lot of tweets. Even reddit with its 10000 char limit per comment has loads of comment trains if you want to store a sizable amount of info that way. With twitters 140 char limit, that would be a huge amount of tweets. You'd probably run the risk of being identified as a spammer if you send that many tweets at once...

[Grue3]

140 unicode characters. Which actually gives you quite a lot of space to work with.