Comment tags   you have NO messagebut thank a loti never know if its better to thank peopleloose their precious time incrase trafic on SpecialRecentchanges by the way is there any very advanced mediawiki howto for doing things such as      No problem and I think many people appreciate a user saying job well done  The commenting feature of HTML the bracket exclamation point business makes text invisible  For instance if you were to look at edit this page you could see a sentence here    This is occasionally done in articles for a variety of reasons Put in a notice about vandalism such as is done on Chuck Norris which is also at present semiprotected or when the same mistake is made by many users Automated bots sometimes also remove an image by enclosing it in comments when the image may be added incorrectly In rare cases text additions are put in comments so that other editors can see them before the material is added to the article properly  This is usually a bad use of the comments since it makes things confusing to edit They often appear at the end of semiautomated template messages to indicate which message was used that is where the TemplateUnsigned  So for instance I wrote substunsigned tux and the unsigned template was added  If you want to try out some templates which are always enclosed in two curlybraces in the WikipediaSandbox a pretty good list of common template messages is available at WPTM Thanks