The title is ROT13'ed "Think, Columns Key: Billforward". Haven't been able to make much progress past that; I've tried the text against all of the symmetric ciphers on my system using the key "Billforward" without any luck.

$ IFS=":$IFS";for i in $( openssl ciphers 'ALL:!ADH:@STRENGTH:!EXP' | sed -E -e 's/(-(MD5|SHA)|(DHE|DSS|EDH-DSS|EDH|RSA)-|3)//g' ); do openssl enc -$i -d -in bf.txt -k Billforward; done