hmmm the only solution to your problem I can think of...:
do you use firefox, flock, etc... browsers?
because if you do, it should be possible to make an extension/greasemonkey script that fixes it for you o_O
though... I THINK that would be A LOT of trouble for a minor problem like this (and I don't know about these languages, so I can't help you much =/)
but if you're really really uncomfortable with it, I think the IDEA of the code should be something like... (in a php-esque fashion)
CODE
if (url starts with == "http://www.ragnarokbattle.com/forum/index.php?showtopic=") {
if (div class == postcolor) {
if (text-color == #7F7F7F) {
text-color = #000000
}
}
}
that still might generate bizarre effects if the posts are not the only divs that have the "postcolor" class... though I couldn't find any other.
an alternative would be:
CODE
if (url starts with == "http://www.ragnarokbattle.com/forum/index.php?showtopic=") {
if (div name is == "#post-[any-number]") {
if (text-color == #7F7F7F) {
text-color = #000000
}
}
}