<Jafet> sed -i "2 s#.*#import random; w=[l.split() for l in open(\'/dev/stdin\').read().split(\'\\n\')]; r=[4,7,8,9,2,13,6]; print \'\\n\'.join((lambda s: \' \'.join(chr(3) + str(r[(i+s)%len(r)]) + l[i] for i in range(len(l)))(random.randrange(0, len(r))))#" $(which rainwords)

2011-09-03.txt:19:18:43: <Deewiant> The original was just "Esolang event @ Hel/Finland on 3.10.2011"
2011-09-21.txt:23:15:45: <elliott> `pastelogs Hel/Finland