if anything I may be nicer and choose my words more carefully, since they are written and archived, rude or abusive things are there for quite awhile and can come back to bite you in the ass.
in this 'world' people have the option to run a simple search and throw your words right back in your face.
they can also look at your comments on may subjects, its much easier to spot trends in peoples personality.
on the upside, you also have the option to just 'disappear' and come back as somebody else, when you've gone far enough that nobody wants to put up with your crap any longer. some people need this option more than others.