Originally Posted by TheSquealer

you can't do anything with anyone's content unless you have permission to do so. Just as you can't reproduce posts on this forum without the permission of the owners. There are few limited exceptions with restrictions (including in news reporting etc). You can't take someone else's content and use it to profit from, unless you've got their permission.

What people do and don't get caught or haven;'t got caught doing yet, is not the same as being legal.