Compatibility, Simplicity, and Cost.
Compatibility – To ensure the widest possible compatibility across MediaWiki servers, Real Obvious Info is installed as an enhancement (not a plugin). Installing Real Obvious Info is easy as 1-2-3 — Step 1) Upload the info image; Step 2) Update common.css; Step 3) Create the MediaWiki Info Template.
Simplicity – MediaWiki Templates are used to add “Info” messages to a wiki page. Real Obvious Info ensures a common look and feel of Info messages for the MediaWiki site.
Cost – Real Obvious Info is made available free of charge.