This happened to me but they were a fan of a different killer it's so weird is this a common thing on neocities?
Closest thing I know of is Wiby, though that has more of a general ye-olde-web focus and i’m not even sure if it indexes Geocities. Would definitely be a fun project!
Here's one with an index covering Geocities, AOL, Angelfire, Tripod, Xoom, and perhaps more: http://oldavista.com/
Nooo guard your sleep! I'm happy to hear that I was able to help though >:-) You're doing some quite important work for archiving internet + fandom history! Your comment has inspired me to get stuff done for my website too... for the first time in 2 years :_)))