G_Yoshi, your method is horrible. Better version (untested but still way better):
NPC Code:
if (playerchats) {
tokenize #c;
for (i=0;i<tokenscount;i++) {
if (strequals(#t(i),u)) setstring local.chat,#s(local.chat)you ;
else setstring local.chat,#s(local.chat)#t(i) ;
}
setplayerprop #c,#s(local.chat);
setstring local.chat,;
}
Nesting event blocks is stupidstupidstupid.