Since there are many newcomers on wikiHow, they will love to enhance their User Pages using UIBs. It will be better to have a one stop page for it so that wikiHowians can pick the wikiText of UIBs that suits them best.
See list on lower right hand side of screen here: http://www.wikihow.com/Category:UserInfoBoxes And note the templates for creating them here… http://www.wikihow.com/index.php?title=Category:UIB-Information&viewMode=text
