Well actually, it WILL BREAK the LAYOUT OF ANY SITE where its displayed on.
I just had a very strange view of newest nodes, where the sidebar nodelets where AFTER the content and not aside. And this is formerly unknown behaviuor to me. So Usernames and Nodetitles that screw up the sites design have to be disabled. Well for me it looks like portion poisoning code as it sometimes occures in open source projects. You bring in a bug in pieces. Once complete just use it - and if there is a way to break the server PM is running on ONE will DO it, just to show that he could.

Have a nice day
All decision is left to your taste