Gerry,

Don't do it! 

But, to answer your question, you have to register using a name, then when you finish writing what you have to say, use four of these "tildes"  ~~~~  Then your user name shows up with a date/time stamp.

I recommend that if you want to vent, don't mess with the article but use the talk pages.  No Wiki articles are ever complete, but these are finished as of today, and the Wiki's do take it quite seriously!

Cynth