12. Access any other person's account, or exceed the scope of the Website that you have signed up for; for example, accessing and using features you don't have a right to use."
And if you meant another site like LiveJournal, I think it's the same. This a very standard rule in many websites.
Re: Not overreacting at all!
Yeah, here it is:
http://www.dreamwidth.org/legal/tos
"XI. Member Conduct
You agree that you will not use the Website to:
(...)
12. Access any other person's account, or exceed the scope of the Website that you have signed up for; for example, accessing and using features you don't have a right to use."
And if you meant another site like LiveJournal, I think it's the same. This a very standard rule in many websites.