Hey, Yes it is very much possible. Read how to do it here: http://www.simplemachines.org/community/index.php?topic=218449.0 FaNtEcH
You can't say that. Have you seen how many mods smf has? SMF tries not to add too many features on purpose in the main installation to keep the project simple and not make the software bloated. In the end, it's personal choice.