RewriteRule ^(\w+)/foaf$ index.php?action=foaf&nickname=$1 [L,QSA]
RewriteRule ^(\w+)/replies$ index.php?action=replies&nickname=$1 [L,QSA]
RewriteRule ^(\w+)/replies/rss$ index.php?action=repliesrss&nickname=$1 [L,QSA]
RewriteRule ^(\w+)/foaf$ index.php?action=foaf&nickname=$1 [L,QSA]
RewriteRule ^(\w+)/replies$ index.php?action=replies&nickname=$1 [L,QSA]
RewriteRule ^(\w+)/replies/rss$ index.php?action=repliesrss&nickname=$1 [L,QSA]