Why do people tweet so much compared to posting on facebook?

[Patrick Star]

people sometiems just post random thoughts on their mind or what they want to do, and they have words lkike #missyou or #summer2013, they also make a lot more quick videos, does anybody understand this, and why do people tweet so much more than making facebook posts,'
people also seem to swear more on twitter
what about twitter is differetn from facebook?

[Shelly]

Theres nothing different between the two except popularity. Facebook is getting more complicated that no one can even find there (pictures) sorta speak. Facebook now also has a limit with how much posts you can have over 6 months (That was on the news a while back) "must clean out the profile page every 6 months or get deleted" or something like that. Im sure that twitter works well with mobile.

[sunny]

As a user of both, I feel that twitter seems less complicated, there isn't a big explosion of information being provided to you as in Facebook.