Make the user's content part of their profile instead of listings in search results.

For example, when viewing Rhetts's content, it should be at:
community.invisionpower.com/user/146014-rhett/topics/ - for topics
community.invisionpower.com/user/146014-rhett/posts/page-n/ - for posts
community.invisionpower.com/user/146014-rhett/files/ - for downloads

and so on instead of displaying it at the search results at community.invisionpower.com/index.php?app=core&module=search&do=user_activity&mid=146014

http://community.invisionpower.com/user/182635-oxyfuse/?tab=topics

http://community.invisionpower.com/user/182635-oxyfuse/?tab=posts

Already exists.

That only shows the latest X content from the user. When you want to find more content from the user, you still end up in search results page.

community.invisionpower.com/user/146014-rhett/?tab=topics

IMHO, it should list all Rhett's content, paginated, hence the community.invisionpower.com/user/146014-rhett/Content_Type/page-n/ suggestion. That way, we can see all his content without leaving his profile.

We agree :)