Syndicating Full Articles From Sites I Don't Own

Can I syndicate FULL articles from authority sites and post them on my web 2.0s? (I'll give attribution and link to the original article at the bottom)

I'm not asking if this is good for my web 2.0s SEO wise (I'll test that for myself). What I want to know is will webmasters generally not like this and tell me to take them down or are most cool with it since they get free backlinks?

Yes you can. But if you started ranking higher, they are going to take action. If you stay buried in Google search, no need to worry.