When will we start to care about web 2.0 terms of service?

Trying to read Twitter’s new terms of service I realized why I never look at this kind of documents. And I guess I’m not the only one who automatically press the acceptance button once the “Terms of service” screen appears…

This time I’ve make an exception and I’ve read it and tried to understand (but it’s so boring…) the text. Even there are many sections, there are two that draw my attention: Privacy and Your (my, our) rights (this one I’ll leave it for another day).  In order to try to keep loyal to the original source, I’ve decided that the best would be to copy-paste it here:

Privacy

Any information that you provide to Twitter is subject to our Privacy Policy, which governs our collection and use of your information. You understand that through your use of the Services you consent to the collection and use (as set forth in the Privacy Policy) of this information, including the transfer of this information to the United States and/or other countries for storage, processing and use by Twitter. As part of providing you the Services, we may need to provide you with certain communications, such as service announcements and administrative messages. These communications are considered part of the Services and your Twitter account, which you may not be able to opt-out from receiving.

I don’t have a background in laws, so obviously there would be many aspects that I can easily misunderstand. However… shouldn’t there would be a limit of time for using and keeping our personal data once we’ve stopped using the service? If there isn’t any specification of a “deadline”, should I assume that twitter’s administrators will owe my personal information forever? I’f I’m not wrong, not very far ago people was complaining about Facebook terms of service because they said something as:

You hereby grant Facebook an irrevocable, perpetual, non-exclusive, transferable, fully paid, worldwide license (with the right to sublicense) to (a) use, copy, publish, stream, store, retain, publicly perform or display, transmit, scan, reformat, modify, edit, frame, translate, excerpt, adapt, create derivative works and distribute (through multiple tiers), any User Content you (i) Post on or in connection with the Facebook Service.

Is Twitter doing the same? If so, should we care about it?

Anyway, may be the question is not about what exactly twitter and facebook are doing, but what is happening with users data, specially the personal information, in web 2.0 applications.