Yep, every change you make is recorded and its not too hard to revert. The community is large and usually catches any vandalism.
As for deleting articles, to actually delete an article you need some privileges. Sure you can clear an article of all contents, but its history remains. If you are a moderator of some kind you can actually delete articles. This is if people create articles out of the scope of the encyclopedia or if there are duplicate articles and the other article was chosen as teh best name.
As for deleting articles, to actually delete an article you need some privileges. Sure you can clear an article of all contents, but its history remains. If you are a moderator of some kind you can actually delete articles. This is if people create articles out of the scope of the encyclopedia or if there are duplicate articles and the other article was chosen as teh best name.