i hope so am planing on moving to forums.domain.com would look abit silly tbhThere is no option to remove that part of the URL. When viewing a forum page the forums path defines the type of URL (just like threads defines thread pages) so you can't just remove it. A feature that would allow you to change the path has been requested already. This might be implemented in a future version.
I know what you mean. It's not a question if you start out a new site.I went with /community in the end as it better encompasses the user experience than just /forum.
Most (all?) forums are communities so why not call them that?